Report: Former neighbor who supplied guns to California shooters arrested

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Charges Expected to Be Filed Against San Bernardino Gunman's Friend

(Reuters) - A former neighbor suspected of supplying guns to the married couple who massacred 14 people in San Bernardino, California, has been arrested, the Los Angeles Times reported on Thursday, citing federal authorities.

Federal officials plan to charge Enrique Marquez, a friend and former neighbor of Syed Rizwan Farook, 28, who carried out the Islamic State-inspired Dec. 2 attack with his wife, Tashfeen Malik, 29, with gun law violations, two government sources told Reuters.

A spokesman for the U.S. Attorney's Office in Los Angeles said following the Los Angeles Times report that no formal charges had been filed against Marquez "at this time."

READ MORE: No evidence California attackers were part of terrorist cell: FBI head

Marquez, 24, who had checked himself into a Los Angeles-area psychiatric facility shortly after the shootings, had several connections to Farook and Malik and quickly became a key figure in the investigation of the shootings. The Federal Bureau of Investigation, which is treating the attack as terrorism, raided his home and questioned him for several days. Sources said Marquez cooperated during their interviews.

During the investigation, a law enforcement source said Marquez, who converted to Islam, and Farook apparently plotted an attack around 2012 but abandoned the idea.

Marquez, who had known Farook since they were teenage neighbors in the city of Riverside, legally purchased the two AR-15 assault-style rifles that the couple used in their attack on a holiday party of Farook's co-workers. Farook, the U.S-born son of Pakistani immigrants, and Pakistani-born Malik were killed in a shootout with police a few hours after their assault on the party.

Marquez, who had worked at Walmart and at a bar recently, also is related to Farook's family by marriage. In 2014, according to state records, Marquez married a Russian woman who was the sister of Farook's older brother's wife. Neighbors said they were surprised to learn that he had been married, having never seen him with a woman.

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Report: Former neighbor who supplied guns to California shooters arrested
REDLANDS, CA - DECEMBER 4: Inside the house where Syed Rizwan Farook and Tafsheen Malik, suspects of the deadly the recent mass shootings, lived on December 4, 2015 in Redlands, California. (Photo by Marcus Yam/Los Angeles Times via Getty Images)
REDLANDS, CA - DECEMBER 4: A Quran sits in the living room inside the house where Syed Rizwan Farook and Tafsheen Malik, suspects of the deadly recent mass shootings lived on December 4, 2015 in Redlands, California. (Photo by Marcus Yam/Los Angeles Times via Getty Images)
REDLANDS, CA - DECEMBER 4: An identification card for Syed Farook inside the house where Syed Rizwan Farook and Tafsheen Malik, suspects of the deadly recent mass shootings lived on December 4, 2015 in Redlands, California. (Photo by Marcus Yam/Los Angeles Times via Getty Images)
REDLANDS, CA - DECEMBER 4: A hole in the ceiling could be seen inside the closet area of the rear bedroom inside the house where Syed Rizwan Farook and Tafsheen Malik, suspects of the deadly recent mass shootings lived on December 4, 2015 in Redlands, California. (Photo by Marcus Yam/Los Angeles Times via Getty Images)
REDLANDS, CA - DECEMBER 4: A baby crib is seen inside the baby room of the house where Syed Rizwan Farook and Tafsheen Malik, suspects of the deadly recent mass shootings, lived, on December 4, 2015 in Redlands, California. (Photo by Marcus Yam/Los Angeles Times via Getty Images)
REDLANDS, CA - DECEMBER 4: A firearm lubricant could be seen in the closet of the front bedroom inside the house where Syed Rizwan Farook and Tafsheen Malik, suspects of the deadly recent mass shootings lived on December 4, 2015 in Redlands, California. (Photo by Marcus Yam/Los Angeles Times via Getty Images)
REDLANDS, CA - DECEMBER 4: Media reporters go in and out of the townhouse where Syed Rizwan Farook and Tafsheen Malik, suspects of the deadly recent mass shootings lived on December 4, 2015 in Redlands, California. (Photo by Marcus Yam/Los Angeles Times via Getty Images)
REDLANDS, CA - DECEMBER 4: A praying mat and a cleared out closet in the baby room in the front of the apartment. A rare first glimpse inside the house where Syed Rizwan Farook and Tafsheen Malik, suspects of the deadly the recent mass shootings, lived, on December 4, 2015 in Redlands, California. (Photo by Marcus Yam/Los Angeles Times via Getty Images)
REDLANDS, CA - DECEMBER 4: Prayer beads are seen laying on the bed alongside personal documents in the rear bedroom inside the house where Syed Rizwan Farook and Tafsheen Malik, suspects of the deadly recent mass shootings lived on December 4, 2015 in Redlands, California. (Photo by Marcus Yam/Los Angeles Times via Getty Images)
REDLANDS, CA - DECEMBER 4: A closet inside the baby room. A rare first glimpse inside the house where Syed Rizwan Farook and Tafsheen Malik, suspects of the deadly recent mass shootings, lived, on December 4, 2015 in Redlands, California. (Photo by Marcus Yam/Los Angeles Times via Getty Images)
REDLANDS, CA - DECEMBER 4: A rare first glimpse inside the house where Syed Rizwan Farook and Tafsheen Malik, suspects of the deadly recent mass shootings, lived on December 4, 2015 in Redlands, California. (Photo by Marcus Yam/Los Angeles Times via Getty Images)
A book sits on a table inside the home of San Bernardino mass murder suspect Syed Farook, December 4, 2015 in Redlands, California. The community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. AFP PHOTO / ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
Journalists squeeze into a child's bedroom in the home of shooting suspect Syed Farook on December 4, 2015 in Redlands, California. The community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. AFP PHOTO / ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
A view of the kitchen inside the home of shooting suspect Syed Farook on December 4, 2015 in Redlands, California. The community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. AFP PHOTO / ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
A television crew prepares to do a live report inside a child's bedroom in the home of shooting suspect Syed Farook on December 4, 2015 in Redlands, California. The community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. AFP PHOTO / ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
SAN BERNARDINO, CA - DECEMBER 04: Reporters take pictures of photographs found inside the home of shooting suspect Syed Farook on December 4, 2015 in San Bernardino, California. The San Bernardino community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. (Photo by Justin Sullivan/Getty Images)
REDLANDS, CA - DECEMBER 04: Baby food sits on a kitchen counter inside the home of shooting suspect Syed Farook on December 4, 2015 in Redlands, California. The San Bernardino community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. (Photo by Justin Sullivan/Getty Images)
REDLANDS, CA - DECEMBER 04: A hatchet sits in a kitchen drawer inside the home of shooting suspect Syed Farook on December 4, 2015 in Redlands, California. The San Bernardino community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. (Photo by Justin Sullivan/Getty Images)
REDLANDS, CA - DECEMBER 04: Reporters inspect the home of shooting suspect Syed Farook on December 4, 2015 in Redlands, California. The San Bernardino community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. (Photo by Justin Sullivan/Getty Images)
REDLANDS, CA - DECEMBER 04: Arabic books sit in a closet inside the home of shooting suspect Syed Farook on December 4, 2015 in Redlands, California. The San Bernardino community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. (Photo by Justin Sullivan/Getty Images)
REDLANDS, CA - DECEMBER 04: An Islamic Manners book sits in a bedroom inside the home of shooting suspect Syed Farook on December 4, 2015 in Redlands, California. The San Bernardino community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. (Photo by Justin Sullivan/Getty Images)
REDLANDS, CA - DECEMBER 04: A book about prayer sits on a bedside table inside the home of shooting suspect Syed Farook on December 4, 2015 in Redlands, California. The San Bernardino community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. (Photo by Justin Sullivan/Getty Images)
SAN BERNARDINO, CA - DECEMBER 04: Reporters inspect the home of shooting suspect Syed Farook on December 4, 2015 in San Bernardino, California. The San Bernardino community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. (Photo by Justin Sullivan/Getty Images)
REDLANDS, CA - DECEMBER 04: Reporters inspect the home of shooting suspect Syed Farook on December 4, 2015 in Redlands, California. The San Bernardino community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. (Photo by Justin Sullivan/Getty Images)
REDLANDS, CA - DECEMBER 04: Reporters inspect the home of Syed Farook on December 4, 2015 in Redlands, California. The San Bernardino community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left at least 14 people dead and another 21 injured. (Photo by Justin Sullivan/Getty Images)
Members of the media crowd into the apartment bedroom of San Bernardino shooting suspects Syed Farook and his wife, Tashfeen Malik, in Redlands, Calif., Friday, Dec. 4, 2015, after the building landlord invited journalists into the townhouse. A book containing passages from the Quran is seen at right. (AP Photo/Chris Carlson)
Members of the media crowd into a child's room in an apartment in Redlands, Calif., shared by San Bernardino shooting rampage suspects Syed Farook and his wife, Tashfeen Malik, Friday, Dec. 4, 2015, after the building landlord invited media into the townhouse rented by the California attackers. (AP Photo/Chris Carlson)
Members of the media crowd into the living room of an apartment in Redlands, Calif., shared by San Bernardino shooting rampage suspects Syed Farook and his wife, Tashfeen Malik, Friday, Dec. 4, 2015, after the building landlord invited media into the townhouse rented by the California attackers. (AP Photo/Chris Carlson)
Members of the media crowd into the living room of an apartment in Redlands, Calif., shared by San Bernardino shooting rampage suspects Syed Farook and his wife, Tashfeen Malik, Friday, Dec. 4, 2015, after the building landlord invited media into the townhouse rented by the California attackers. (AP Photo/Chris Carlson)
Members of the media crowd into a child's room in an apartment in Redlands, Calif., shared by San Bernardino shooting rampage suspects Syed Farook and his wife, Tashfeen Malik, Friday, Dec. 4, 2015, after the building landlord invited media into the townhouse rented by the California attackers. (AP Photo/Chris Carlson)
A member of the media films a wall tapestry displaying religous writing in the living room of an apartment in Redlands, Calif., shared by San Bernardino shooting rampage suspects Syed Farook and his wife, Tashfeen Malik, Friday, Dec. 4, 2015, after the building landlord invited media into the townhouse rented by the California attackers. (AP Photo/Chris Carlson)
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The FBI said Farook and Malik discussed martyrdom online before they even met and were supporters of Islamic State, the violent group that has taken over large parts of Syria and Iraq.

Their attack, which left 21 people wounded, has stirred concerns among Americans about national security and the reach of Islamic State, becoming an issue in the U.S. presidential campaign. The attack came a few weeks after gunmen and suicide bombers affiliated with Islamic State killed 130 people in a series of coordinated attacks in Paris.

FBI Director James Comey on Wednesday said there was no evidence that the San Bernardino attackers had been part of a terrorist cell.

Neighbors said Marquez and Farook often worked together on cars in Farook's garage in their younger years but that the friendship had cooled in the past three years.

Marquez converted to Islam about the time that Farook became more devoted to the faith around 2008. But Azmi Hasan, manager at the Islamic Society of Corona-Norco, said Marquez later told him that Islam was not for him.

President Barack Obama is due to travel to San Bernardino on Friday to meet privately with families of the shooting victims.

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