A tipster warned the FBI in January that she was worried Florida shooting suspect was 'going to explode'

  • The person who tipped the FBI off about Nikolas Cruz said she was worried he was "going to explode," according to a transcript obtained by The Wall Street Journal.
  • The FBI admitted last week that it failed to follow protocol in investigating the tip.
  • Cruz allegedly killed 17 people in a mass shooting at a Florida high school last week.
  • The caller said she had also alerted local authorities about Cruz's violent behavior but was unsure what happened to the investigation.

The person who called the FBI's tip line in January to warn them about Nikolas Cruz, the alleged gunman in last week's shooting at a Florida high school, told the agency that he was "going to explode" and "get into a school and just shoot the place up."

According to a transcript obtained by The Wall Street Journal, the caller was worried about Cruz and said she made the call because she "wanted a clear conscience."

Cruz allegedly opened fire with an AR-15 rifle on students and staff at Marjory Stoneman Douglas High School in Parkland, Florida last Wednesday, and faces 17 charges for premeditated murder.

Just days after the shooting, the FBI admitted it failed to follow protocols in forwarding the tip to the agency's Miami field office for further investigation.

49 PHOTOS
Shooting at Marjory Stoneman Douglas High School in Florida
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Shooting at Marjory Stoneman Douglas High School in Florida
PARKLAND, FL - FEBRUARY 14: People are brought out of the Marjory Stoneman Douglas High School after a shooting at the school that reportedly killed and injured multiple people on February 14, 2018 in Parkland, Florida. Numerous law enforcement officials continue to investigate the scene. (Photo by Joe Raedle/Getty Images)
PARKLAND, FL - FEBRUARY 14: People wait for loved ones as they are brought out of the Marjory Stoneman Douglas High School after a shooting at the school that reportedly killed and injured multiple people on February 14, 2018 in Parkland, Florida. Numerous law enforcement officials continue to investigate the scene. (Photo by Joe Raedle/Getty Images)
Students leave Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami on February 14, 2018 following a school shooting. A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Eva Claire HAMBACH (Photo credit should read EVA CLAIRE HAMBACH/AFP/Getty Images)
PARKLAND, FL - FEBRUARY 14: People are brought out of the Marjory Stoneman Douglas High School after a shooting at the school that reportedly killed and injured multiple people on February 14, 2018 in Parkland, Florida. Numerous law enforcement officials continue to investigate the scene. (Photo by Joe Raedle/Getty Images)
Students are released from a lockdown outside of Stoneman Douglas High School in Parkland, Fla. after reports of an active shooter on Wednesday, Feb. 14, 2018. (John McCall/Sun Sentinel/TNS via Getty Images)
Medical personnel tend to a victim outside of Stoneman Douglas High School in Parkland, Fla. after reports of an active shooter on Wednesday, Feb. 14, 2018. (John McCall/Sun Sentinel/TNS via Getty Images)
Medical personnel tend to a victim outside of Stoneman Douglas High School in Parkland, Fla. after reports of an active shooter on Wednesday, Feb. 14, 2018. (John McCall/Sun Sentinel/TNS via Getty Images)
Police and security vehicles are seen at Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami on February 14, 2018 following a school shooting. A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Michele Eve SANDBERG / The erroneous mention[s] appearing in the metadata of this photo by Michele Eve SANDBERG has been modified in AFP systems in the following manner: [Byline: Michele Eve SANDBERG] instead of [Eva Hambach]. Please immediately remove the erroneous mention from all your online services and delete it from your servers. If you have been authorized by AFP to distribute it to third parties, please ensure that the same actions are carried out by them. Failure to promptly comply with these instructions will entail liability on your part for any continued or post notification usage. Therefore we thank you very much for all your attention and prompt action. We are sorry for the inconvenience this notification may cause and remain at your disposal for any further information you may require. (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
Students react following a shooting at Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami on February 14, 2018. A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Michele Eve Sandberg (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
PARKLAND, FL - FEBRUARY 14: The Marjory Stoneman Douglas High School is seen after a shooting at the school that reportedly killed and injured multiple people on February 14, 2018 in Parkland, Florida. Numerous law enforcement officials continue to investigate the scene. (Photo by Joe Raedle/Getty Images)
Security speak with people near Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami on February 14, 2018 following a school shooting. A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Michelle Eve SANDBERG (Photo credit should read MICHELLE EVE SANDBERG/AFP/Getty Images)
PARKLAND, FL - FEBRUARY 14: People are brought out of the Marjory Stoneman Douglas High School after a shooting at the school that reportedly killed and injured multiple people on February 14, 2018 in Parkland, Florida. Numerous law enforcement officials continue to investigate the scene. (Photo by Joe Raedle/Getty Images)
Students gather following a shooting at Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami, February 14, 2018 . A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Michele Eve Sandberg (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
A student wears a Valentine's pin as she leaves Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami on February 14, 2018 following a school shooting. A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Michele Eve Sandberg (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
PARKLAND, FL - FEBRUARY 14: Fire Rescue personnel work the scene at the Marjory Stoneman Douglas High School after a shooting at the school that reportedly killed and injured multiple people on February 14, 2018 in Parkland, Florida. Numerous law enforcement officials continue to investigate the scene. (Photo by Joe Raedle/Getty Images)
Police and fire rescue vehicles converge on Stoneman Douglas High School in Parkland, Fla. after reports of an active shooter on Wednesday, Feb. 14, 2018. (John McCall/Sun Sentinel/TNS via Getty Images)
MAJORY STONEMAN DOUGLAS HIGH SCHOOL, PARKLAND, FLORIDA - OCTOBER 31, 2017: Marjory Stoneman Douglas High School in Parkland, Broward County, Florida. (Photo DigitalGlobe via Getty Images)
Students leave Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami on February 14, 2018 following a school shooting. A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Michele Eve Sandberg (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
Parents confer with security following a shooting at Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami, February 14, 2018 . A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Michele Eve SANDBERG (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
Police officers ride in the back of a pick up truck with a victim outside of Stoneman Douglas High School in Parkland, Fla. after reports of an active shooter on Wednesday, Feb. 14, 2018. (John McCall/Sun Sentinel/TNS via Getty Images)
A law enforcement officer directs traffic outside of Stoneman Douglas High School in Parkland, Fla. after reports of an active shooter on Wednesday, Feb. 14, 2018. (John McCall/Sun Sentinel/TNS via Getty Images)
A young woman who just walked out from the direction of the high school, who refused to give her name, gets a hug as she reaches the overpass at Coral Springs Drive and the Sawgrass Expressway just south of the campus of Marjorie Stonemason Douglas High School where a shooting occurred on Wednesday, Feb. 14, 2018 in Parkland, Fla. (Amy Beth Bennett/Sun Sentinel/TNS via Getty Images)
A student reacts as she talks to a television reporter at Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami on February 14, 2018 following a school shooting. A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Michele Eve SANDBERG (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
SWAT vehicles converge on Stoneman Douglas High School in Parkland, Fla. after reports of an active shooter on Wednesday, Feb. 14, 2018. (John McCall/Sun Sentinel/TNS via Getty Images)
Students react at Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami on February 14, 2018 following a school shooting. A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Michele Eve SANDBERG (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
People react at Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami on February 14, 2018 following a school shooting. A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Michele Eve SANDBERG (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
PARKLAND, FL - FEBRUARY 14: People are brought out of the Marjory Stoneman Douglas High School after a shooting at the school that reportedly killed and injured multiple people on February 14, 2018 in Parkland, Florida. Numerous law enforcement officials continue to investigate the scene. (Photo by Joe Raedle/Getty Images)
Students are released from a lockdown outside of Stoneman Douglas High School in Parkland, Fla. after reports of an active shooter on Wednesday, Feb. 14, 2018. (John McCall/Sun Sentinel/TNS via Getty Images)
PARKLAND, FL - FEBRUARY 14: People are brought out of the Marjory Stoneman Douglas High School after a shooting at the school that reportedly killed and injured multiple people on February 14, 2018 in Parkland, Florida. Numerous law enforcement officials continue to investigate the scene. (Photo by Joe Raedle/Getty Images)
Students are evacuated by police out of Stoneman Douglas High School in Parkland, Fla., after a shooting on Wednesday, Feb. 14, 2018. (Mike Stocker/Sun Sentinel/TNS via Getty Images)
PARKLAND, FL - FEBRUARY 14: People are brought out of the Marjory Stoneman Douglas High School after a shooting at the school that reportedly killed and injured multiple people on February 14, 2018 in Parkland, Florida. Numerous law enforcement officials continue to investigate the scene. (Photo by Joe Raedle/Getty Images)
Students react following a shooting at Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami on February 14, 2018. A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Michele Eve Sandberg (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
Students react following a shooting at Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami on February 14, 2018. A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Michele Eve Sandberg (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
Students react following a shooting at Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami on February 14, 2018. A gunman opened fire at the Florida high school, an incident that officials said caused 'numerous fatalities' and left terrified students huddled in their classrooms, texting friends and family for help. The Broward County Sheriff's Office said a suspect was in custody. / AFP PHOTO / Michele Eve Sandberg (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
Students are brought across Coral Springs Drive from the campus of Stoneman Douglas High School in Parkland, Fla., after a shooting on Wednesday, Feb. 14, 2018. (Amy Beth Bennett/Sun Sentinel/TNS via Getty Images)
Waiting for word from students at Coral Springs Drive and the Sawgrass Expressway just south of the campus of Stoneman Douglas High School in Parkland, Fla., after a shooting on Wednesday, Feb. 14, 2018. (Amy Beth Bennett/Sun Sentinel/TNS via Getty Images)
SWAT vehicles converge on Stoneman Douglas High School in Parkland, Fla. after reports of an active shooter on Wednesday, Feb. 14, 2018. (John McCall/Sun Sentinel/TNS via Getty Images)
Waiting for word from students at Coral Springs Drive and the Sawgrass Expressway just south of the campus of Stoneman Douglas High School in Parkland, Fla., after a shooting on Wednesday, Feb. 14, 2018. (Amy Beth Bennett/Sun Sentinel/TNS via Getty Images)
Trauma surgeon Dr. Igor Nichiporenko (C) and director for emergency medicine Dr. Evan Boyar (R) address the media outside the Broward Health Emergency facility where victims were taken following a shooting at Marjory Stoneman Douglas High School in Parkland, Florida, a city about 50 miles (80 kilometers) north of Miami on February 14, 2018. Seventeen people were killed when a 19-year-old former student opened fire with a semi-automatic rifle at the Florida high school, the local sheriff said, calling the scene 'horrific.' Broward County Sheriff Steve Israel said the victims were a mix of students and adults, though he could not confirm if the adults were teachers. / AFP PHOTO / Michele Eve SANDBERG (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
Waiting for word from students at Coral Springs Drive and the Sawgrass Expressway just south of the campus of Stoneman Douglas High School in Parkland, Fla., after a shooting on Wednesday, Feb. 14, 2018. (Amy Beth Bennett/Sun Sentinel/TNS via Getty Images)
Florida Governor Rick Scott (4th-L) visits Marjory Stoneman Douglas High School following a shooting that killed 17 people on February 14, 2018 in Parkland, Florida. A former student armed with an AR-15 rifle opened fire at a Florida high school, killing at least 17 people, officials said, in a harrowing shooting spree that saw terrified students hiding in closets and under desks as they texted for help. Broward County Sheriff Scott Israel identified the gunman as Nikolas Cruz, 19, a former student at Marjory Stoneman Douglas High School in Parkland who had been expelled for 'disciplinary reasons.' / AFP PHOTO / Gaston De Cardenas (Photo credit should read GASTON DE CARDENAS/AFP/Getty Images)
BROWARD, UNITED STATES - FEBRUARY 14: Students meet their families following a school shooting at Marjory Stoneman Douglas High School in Broward, Florida on February 14, 2018. At least 17 people were killed Wednesday when a lone gunman opened fire on a Florida high school, according to police. The victims are a mix of students and adults, officials said. (Photo by Carlos Miller/Anadolu Agency/Getty Images)
Police vehicles block the road to Marjory Stoneman Douglas High School in Parkland, Florida, following a shooting that killed 17 people on February 14, 2018 in Parkland, Florida. A former student armed with an AR-15 rifle opened fire at a Florida high school, killing at least 17 people, officials said, in a harrowing shooting spree that saw terrified students hiding in closets and under desks as they texted for help. Broward County Sheriff Scott Israel identified the gunman as Nikolas Cruz, 19, a former student at Marjory Stoneman Douglas High School in Parkland who had been expelled for 'disciplinary reasons.' / AFP PHOTO / Gaston De Cardenas (Photo credit should read GASTON DE CARDENAS/AFP/Getty Images)
PARKLAND, FL - FEBRUARY 14: Nathanael Clark (L) and his father, John Clark, speak to the media after Nathanael escaped the shooting at Marjory Stoneman Douglas High School that killed 17 people on February 14, 2018 in Parkland, Florida. Numerous law enforcement officials continue to investigate the scene. (Photo by Joe Raedle/Getty Images)
PARKLAND, FL - FEBRUARY 14: Sarah Crescitelli leans on her mother, Stacy Crescitelli (L) after she escaped the shooting at Marjory Stoneman Douglas High School that killed 17 people on February 14, 2018 in Parkland, Florida. Numerous law enforcement officials continue to investigate the scene. (Photo by Joe Raedle/Getty Images)
The location where suspect Nikolas Cruz was caught by police at a townhouse in Pelican Pointe at Wyndham Lakes in Coral Cables, Florida following the deadly shooting at Marjory Stoneman Douglas High School in Parkland, Florida on Febreuary 14, 2018. A former student armed with an AR-15 rifle opened fire at a Florida high school, killing at least 17 people, officials said, in a harrowing shooting spree that saw terrified students hiding in closets and under desks as they texted for help. Broward County Sheriff Scott Israel identified the gunman as Nikolas Cruz, 19, a former student at Marjory Stoneman Douglas High School in Parkland who had been expelled for 'disciplinary reasons.' / AFP PHOTO / Michele Eve SANDBERG (Photo credit should read MICHELE EVE SANDBERG/AFP/Getty Images)
Parents meet at the Fort Lauderdale Marriott Coral Springs Hotel to pick up their children following a mass shooting at nearby Marjory Stoneman Douglas High School in Parkland, Fla., on Wednesday, Feb. 14, 2018. (Jim Rassol/Sun Sentinel/TNS via Getty Images)
Parents meet at the Fort Lauderdale Marriott Coral Springs Hotel to pick up their children following a mass shooting at nearby Marjory Stoneman Douglas High School in Parkland, Fla., on Wednesday, Feb. 14, 2018. (Jim Rassol/Sun Sentinel/TNS via Getty Images)
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In the tip, the caller said she believed Cruz had the mental capacity of a 12- or 14-year-old child, and had made a series of disturbing Instagram posts about wanting to kill himself and others.

"Something is gonna happen," she said. "Because he's — he doesn't have the mental capacity. He can't, he's so outraged if someone talks to him about certain things."

She also said during the call that she told local police about Cruz's behavior, but was unsure where their investigation stood.

Local authorities, particularly the Broward County Sheriff's Office, has also come under fire for not taking action against Cruz sooner. Police had visited Cruz's home dozens of times in recent years, in many cases due to his behavior or violent outbursts.

14 PHOTOS
Florida high school shooting suspect Nikolas Cruz
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Florida high school shooting suspect Nikolas Cruz
Photo Credit: Broward County Sheriff’s Office
Photo Credit: Instagram
Nikolas Cruz (C) appears via video monitor with Melisa McNeill (R), his public defender, at a bond court hearing after being charged with 17 counts of premeditated murder, in Fort Lauderdale, Florida, U.S., February 15, 2018. REUTERS/Susan Stocker/Pool
Suspected school shooter Nikolas Cruz makes a video appearance in Broward County court before Judge Kim Theresa Mollica on Thursday, Feb. 15, 2018. Cruz is facing 17 charges of premeditated murder in the mass shooting at Marjory Stoneman Douglas High School in Parkland, Fla. (Susan Stocker/Sun Sentinel/TNS via Getty Images)
Suspected school shooter Nikolas Cruz makes a video appearance in Broward County court before Judge Kim Theresa Mollica on Thursday, Feb. 15, 2018. Cruz is facing 17 charges of premeditated murder in the mass shooting at Marjory Stoneman Douglas High School in Parkland, Fla. (Susan Stocker/Sun Sentinel/TNS via Getty Images)
Suspected school shooter Nikolas Cruz makes a video appearance in Broward County court before Judge Kim Theresa Mollica on Thursday, Feb. 15, 2018. Cruz is facing 17 charges of premeditated murder in the mass shooting at Marjory Stoneman Douglas High School in Parkland, Fla. (Susan Stocker/Sun Sentinel/TNS via Getty Images)
Suspected school shooter Nikolas Cruz makes a video appearance in Broward County court before Judge Kim Theresa Mollica on Thursday, Feb. 15, 2018. Cruz is facing 17 charges of premeditated murder in the mass shooting at Marjory Stoneman Douglas High School in Parkland, Fla. (Susan Stocker/Sun Sentinel/TNS via Getty Images)
FORT LAUDERDALE, FL - FEBRUARY 15: Nikolas Cruz, 19, a former student at Marjory Stoneman Douglas High School in Parkland, Florida, where he allegedly killed 17 people, is seen on a closed circuit television screen during a bond hearing in front of Broward Judge Kim Mollica at the Broward County Courthouse on February 15, 2018 in Fort Lauderdale, Florida. Mr. Cruz is possibly facing 17 counts of premeditated murder in the school shooting. (Photo by Susan Stocker - Pool/Getty Images)
FORT LAUDERDALE, FL - FEBRUARY 15: Prosecutor Shari Tate (L) attends the hearing for Nikolas Cruz, 19, a former student at Marjory Stoneman Douglas High School in Parkland, Florida, where he allegedly killed 17 people, during a bond hearing in front of Broward Judge Kim Mollica at the Broward County Courthouse on February 15, 2018 in Fort Lauderdale, Florida. Mr. Cruz is possibly facing 17 counts of premeditated murder in the school shooting. (Photo by Susan Stocker - Pool/Getty Images)
FORT LAUDERDALE, FL - FEBRUARY 15: Nikolas Cruz, 19, a former student at Marjory Stoneman Douglas High School in Parkland, Florida, where he allegedly killed 17 people, is seen on a closed circuit television screen during a bond hearing in front of Broward Judge Kim Mollica at the Broward County Courthouse on February 15, 2018 in Fort Lauderdale, Florida. Mr. Cruz is possibly facing 17 counts of premeditated murder in the school shooting. (Photo by Susan Stocker - Pool/Getty Images)
Nikolas Cruz, facing 17 charges of premeditated murder in the mass shooting at Marjory Stoneman Douglas High School in Parkland, appears in court for a status hearing before Broward Circuit Judge Elizabeth Scherer in Fort Lauderdale, Florida, U.S. February 19, 2018. REUTERS/Mike Stocker/Pool
Nikolas Cruz, facing 17 charges of premeditated murder in the mass shooting at Marjory Stoneman Douglas High School in Parkland, appears in court for a status hearing in Fort Lauderdale, Florida, U.S. February 19, 2018. REUTERS/Mike Stocker/Pool TPX IMAGES OF THE DAY
Nikolas Cruz, facing 17 charges of premeditated murder in the mass shooting at Marjory Stoneman Douglas High School in Parkland, appears in court for a status hearing in Fort Lauderdale, Florida, U.S. February 19, 2018. REUTERS/Mike Stocker/Pool
Nikolas Cruz, facing 17 charges of premeditated murder in the mass shooting at Marjory Stoneman Douglas High School in Parkland, appears in court for a status hearing before Broward Circuit Judge Elizabeth Scherer in Fort Lauderdale, Florida, U.S. February 19, 2018. REUTERS/Mike Stocker/Pool
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The person who called the FBI detailed a series of disturbing incidents involving Cruz, in which he would become violent with people or harm animals.

"He brought the bird into the house," she said. "He threw it on his mother's kitchen counter and he started cutting it up. He has all kinds of hunting knives. I don't know what knife he used, though. And he started cutting the bird up, and his mother…said, 'What're you doing?' And he says, 'I want to see what's inside.'"

The caller said it was "alarming" to see his Instagram photos and "know what he's capable of doing."

"He's [been] thrown out of all these schools because he would pick up a chair and just throw it at somebody, a teacher or a student, because he didn't like the way they were talking to him," she said.

17 PHOTOS
Victims of the Marjory Stoneman Douglas High School shooting
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Victims of the Marjory Stoneman Douglas High School shooting

Scott Beige - Geography Teacher

Photo Credit: Courtesy of Elizabeth James Watt​​​​​​​

Chris Hixon - athletic director

Photo Credit: Marjory Stoneman Douglas High School

15-year-old Alyssa Alhadeff

Photo Credit: Florida Youth Soccer Association

14-year-old Alex Schachter

Photo Credit : Getty 

14-year-old Cara Loughran

Photo Credit: Facebook

17-year-old Helena Ramsey

Photo Credit: Facebook

14-year-old Alaina Petty

Photo Credit: Facebook

14-year-old Gina Montalto

Photo Credit: Facebook

15-year-old Peter Wang
18-year-old Meadow Pollack (left)

Student Jaime Guttenberg

Photo Credit: Facebook 

Student Martin Duque

Photo Credit: Martin Duque/GoFundMe

17-year-old student Nick Dworet

Photo Credit: Instagram 

Football coach Aaron Feis.

Photo Credit: MSDfootball.com

16-year-old student Carmen Schentrup

Student Joaquin Oliver

Photo Credit: Facebook

Student Luke Hoyer

Photo Credit: Facebook 

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