Suspected Mail Bomber Seen Chanting at Trump Rally in Newly Released Video

Cesar Sayoc Jr., accused of sending more than a dozen package bombs to critics of the president, can also be seen holding a poster reading, "CNN sucks."

New footage of the accused serial mail bomber at a Donald Trump rally last year has been released by filmmaker Michael Moore. 

With his muscles bulging, Cesar Sayoc Jr. was filmed holding a "CNN Sucks" poster and chanting, "Tell the truth."

The video of Sayoc was shot at a rally in Melbourne, Florida, just one month after President Trump's inauguration. It was taken by filmmaker Michael Moore for his documentary “Fahrenheit 11/9.”

Moore himself featured on Sayoc's van, which included a plethora of pro-Trump decals, as well as photos of Moore, Hillary Clinton, former President Obama and other Democrats in in the crosshairs of a gun. The image, Moore said, has left him "a bit shaken."

Other footage obtained by ABC News shows Sayoc at a strip club in West Palm Beach just hours before his arrest.

Inside Edition spoke to Stacey Saccal, the club's general manager, about Sayoc, who worked as a doorman there. She said that he greeted people as they entered and left, and did some DJ work. 

Imon Karim, who owns a security camera business, said he knew Sayoc through his work at the club. 

“This gentleman was so far right wing,” he said. “That it made me scared to really associate with him. I'm like, ‘I can't believe somebody hates the Democratic Party that much.’”

Just last week, Karim said Sayoc sent him a link to an article about the pipe bomb mailed to billionaire George Soros — a crime Sayoc now stands accused of.

“I saw it on CNN, I saw it on Fox, I didn't put two and two together,” Karim said. 

Police mugshots show Sayoc over the years, from the first in 2002 to the latest last week.

Attorney Ron Lowy has represented Sayoc in four criminal cases. Speaking to Inside Edition, he described his client as “very immature,” adding he “suffers from mental deficiencies” and “refused medical care.” 

Forensic psychologist Keith Ablow said Sayoc's alleged terror campaign may have been the catalyst for the suspect in Saturday's synagogue massacre in Pittsburgh.

“If one person who's fragile and on the edge sees that another man is getting a great deal of attention, it sure could bring that person to the boiling point,” he told Inside Edition.