DOJ: Pipe bomb suspect searched targets, photos online

FORT LAUDERDALE, Fla. (AP) — Pipe bomb suspect Cesar Sayoc searched for addresses of his targets online and had photos of many of them on his cellphone, including one of Michelle Obama's driver's license, federal prosecutors said in a letter outlining more evidence against him.

The letter sent by Justice Department prosecutors in New York to a Miami federal judge also says Sayoc began plotting the "domestic terror attack" in July while living in his van. The old white vehicle was plastered with photos praising Donald Trump and targeting his critics, depicting some of Sayoc's alleged opponents with red crosshairs on their faces.

The FBI says Sayoc ultimately mailed 15 improvised explosive devices to prominent Democrats, Trump critics and media outlets before he was arrested in the van last week.

The 56-year-old Sayoc faces five federal charges in Manhattan carrying a combined maximum sentence of 48 years behind bars, prosecutors said.

Prosecutors said in the letter to U.S. Magistrate Judge Edwin Torres that Sayoc should remain jailed without bail. A detention hearing is set Friday in Miami, as well as a hearing on when Sayoc should be sent to New York to stand trial. Additional charges are likely, they said.

Images from the scene:

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Deadly shooting at Tree of Life Synagogue in Pittsburgh
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Deadly shooting at Tree of Life Synagogue in Pittsburgh
A SWAT team arrives at the Tree of Life Synagogue inPittsburgh, Pa. where a shooter opened fire injuring multiple people, Saturday, Oct. 27, 2018. (AP Photo/Gene J. Puskar)
First responders arrive at the Tree of Life Synagogue in Pittsburgh, Pa.m, where a shooter opened fire Saturday, Oct. 27, 2018. (AP Photo/Gene J. Puskar)
La presencia policial alrededor de una sinagoga en Pittsburgh donde un individuo efectuó disparos el 27 de octubre del 2018. (Pam Panchak/Pittsburgh Post-Gazette via AP)
People gather on a corner near the Tree of Life Synagogue in Pittsburgh, Pa., where a shooter opened fire Saturday, Oct. 27, 2018, injuring multiple people. (AP Photo/Gene J. Puskar)
First responders surround the Tree of Life Synagogue in Pittsburgh, Pa., where a shooter opened fire Saturday, Oct. 27, 2018, wounding three police officers and causing "multiple casualties" according to police. (AP Photo/Gene J. Puskar)
First responders surround the Tree of Life Synagogue, rear center, where a shooter opened fire Saturday, Oct. 27, 2018, wounding three police officers and causing "multiple casualties" according to Police. (AP Photo/Gene J. Puskar)
First responders surround the Tree of Life Synagogue where a shooter opened fire Saturday, Oct. 27, 2018, wounding three police officers and causing "multiple casualties" according to Police. (AP Photo/Gene J. Puskar)
First responders surround the Tree of Life Synagogue, rear center, where a shooter opened fire Saturday, Oct. 27, 2018, wounding three police officers and causing "multiple casualties" according to Police. (AP Photo/Gene J. Puskar)
First responders surround the Tree of Life Synagogue where a shooter opened fire Saturday, Oct. 27, 2018. (AP Photo/Gene J. Puskar)
Polikce respond to an active shooter situation at the Tree of Life synagogue on Wildins Avenue in the Squirrel Hill neighborhood of Pittsburgh, Pa., on Saturday, October 27, 2018. (Pam Panchak/Pittsburgh Post-Gazette via AP)
A man holds his head as he is escorted out of the Tree of Life Congregation by police following a shooting at the Pittsburg synagogue, Saturday, Oct. 27, 2018. (Alexandra Wimley/Pittsburgh Post-Gazette via AP)
Law enforcement run with a person on a stretcher at the scene where multiple people were shot, Saturday, Oct. 27, 2018, at the Tree of Life Congregation in Pittsburgh's Squirrel Hill neighborhood. (Alexandra Wimley/Pittsburgh Post-Gazette via AP)
Law enforcement officers secure the scene where multiple people were shot, Saturday, Oct. 27, 2018, at the Tree of Life Congregation in Pittsburgh's Squirrel Hill neighborhood. (Alexandra Wimley/Pittsburgh Post-Gazette via AP)
PITTSBURGH, PA - OCTOBER 27: A former rabbi talks about his congregation near the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Residents talk to the media near the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Police rapid response team members respond to the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Police rapid response team members respond to the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Residents check their phones near the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Police rapid response team members respond to the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Police rapid response team members respond to the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Police rapid response team members respond to the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Police rapid response team members respond to the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Police rapid response team members respond to the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Police rapid response team members respond to the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Police rapid response team members respond to the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Police members respond to the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Police rapid response team members respond to the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
PITTSBURGH, PA - OCTOBER 27: Police members respond to the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018 in Pittsburgh, Pennsylvania. According to reports, at least 12 people were shot, 4 dead and three police officers hurt during the incident. The shooter surrendered to authorities and was taken into custody. (Photo by Jeff Swensen/Getty Images)
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"Because of the powerful proof that the defendant perpetrated these acts, he poses a substantial danger to the community. In light of the consequences at issue and the likelihood of conviction, the defendant is also a substantial flight risk. Therefore, pretrial detention is appropriate," the letter says.

Among Sayoc's online searches for addresses, prosecutors said, were for former President Barack Obama, former Secretary of State Hillary Clinton, billionaire George Soros, California Sen. Kamala Harris, New Jersey Sen. Cory Booker, former Attorney General Eric Holder and for "cnn building." The FBI recovered explosive devices sent to all of them, among others.

Sayoc's cellphone contains photos of some of his alleged intended victims, the letter adds, including Soros, the homes of Obama and former Vice President Joe Biden, and the driver's license belonging to Michelle Obama.

The laptop computer found in the van also has a file with the address in Sunrise, Florida, of the office of U.S. Rep. Debbie Wasserman Schultz, former chairwoman of the Democratic National Committee. That office was used as the return address on the packages containing the pipe bombs, according to the FBI. The computer file was labeled "Debbie W.docx".

In addition, prosecutors said the FBI so far has found DNA evidence linked to Sayoc from 10 of the improvised explosive devices and fingerprints on two of the mailing envelopes.

Sayoc was arrested last Friday outside a South Florida auto parts store after the pipe bombs began surfacing around the country. None of them exploded and no one was injured, but investigators say they contained real explosive material.

"The defendant also placed shards of glass in several of the IEDs for the apparent purpose of maximizing harm to his intended victims through the detonation of the devices that he had mailed," prosecutors wrote.

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Victims of the Tree of Life Synagogue shooting in Pittsburgh
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Victims of the Tree of Life Synagogue shooting in Pittsburgh

Jerry Rabinowitz reportedly died running into the gunfire to help those who had been injured, according to The Independent. Rabinowtiz was also honoured posthumously by The AIDS Memorial, which remembered him on social media for his work with HIV/AIDS patients in Pittsburgh. The post featured a person with HIV/AIDS describing Rabinowitz as being “known in the community for keeping us alive the longest,” saying he often held HIV/AIDS patients’ hands without gloves.

(Photo: Instagram/TheAIDSMemorial)

Rose Mallinger, 97 May her memory be a blessing https://t.co/F7d0AGtAU8
Brothers Cecil & David Rosenthal @ACHIEVA: Cecil’s laugh was infectious. David was so kind and had such a gentle s… https://t.co/17B73Dwcwk

This undated photo provided by Barry Werber shows Melvin Wax. Wax was killed when a gunman opened fire at a Pittsburgh synagogue on Saturday, Oct. 27, 2018.

(Courtesy of Barry Werber via AP)

Bernice and Sylvan Simon, 84 & 86, were married at Tree of Life in the 1950s. Bernice was a retired nurse and Sylva… https://t.co/AQk7kRrnx7
'A very special person:' Canadian Joyce Fienberg killed in #Pittsburgh: https://t.co/M7fsuz7VY3 https://t.co/1Xo0orpI3s
Richard Gottfried and his wife, Peg, were of different faiths, but shared a mission to help the neediest. Married 3… https://t.co/5cGsjQWHfk
The identities of those killed and injured in a mass shooting at Squirrel Hill's Tree of Life Synagogue this mornin… https://t.co/fA3BRuojXi
Irving Younger, 69 Younger was a real estate agent, the president of a local business association, a voluteer at… https://t.co/1b79TCHuqH
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Follow Curt Anderson on Twitter: http://twitter.com/Miamicurt

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