Defense lawyers in the trial of Orlando’s Pulse Nightclub gunman Omar Mateen’s widow Noor Salman are asking for the case to be declared a mistrial, arguing prosecutors failed to disclose that Mateen’s father was a former confidential informant for the FBI, the Orlando Sentinel reported on Monday.

Salman’s lawyers said that prosecutors didn’t share information with them that Mateen’s father Seddique was also investigated after agents assigned to the shooting investigation found receipts for money transfers to Turkey and Afghanistan.

Her lawyers claim that the new revelation prevented them from probing whether or not Seddique Mateen knew of his son’s plans to attack the nightclub on June 12, 2016, according to CBS affiliate WKMG.

Her lawyers contend in the motion for a mistrial that the decision not to give 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.”

Salman is on trial for aiding and abetting her husband and with obstruction of justice for lying to federal agents. She could receive life in prison if convicted.

On Monday, her lawyers will try to convince jurors that she didn’t help her husband as he made plans for the attack on the gay nightclub.

This comes after prosecutors rested their case on Thursday. They provided evidence that Mateen and his wife exchanged text messages during the attack.

Salman’s attorneys have said they plan to tell jurors that she was diagnosed with PTSD because of Mateen’s domestic abuse, according to the Sentinel.

In her opening statements, defense attorney Linda Moreno said Salman is a “trusting, simple” person with a low IQ, who did not know she would be widowed, because her husband became “a martyr for a cause that she didn’t support.”

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