...According to the motion, the defense states that the decision not to give Noor Salman a polygraph was possibly "based on the FBI's desire to implicate Noor Salman, rather than Seddique Mateen in order to avoid scrutiny of its own ineptitude with the latter."

The defense also said Seddique's connection with the FBI played a role in a 2013 investigation into Omar Mateen for allegedly making threats against coworkers.

“Mateen’s father played a significant role in the FBI’s decision not to seek an indictment from the Justice Department for false statements to the FBI or obstruction of justice against Omar Mateen” during its 2013 investigation into his alleged threats," the motion stated.

Seddique Mateen previously made headlines when he attended a rally for Democratic presidential candidate Hillary Clinton less than two months after the Pulse attack. He was positioned directly behind Clinton during her speech in Kissimmee....