A Whitehall man accused of stalking 11 different women online and across state lines pleaded guilty on Thursday in federal court.

Brett Michael Dadig, 31, will be sentenced in Pittsburgh by U.S. District Judge Marilyn Horan on July 9.

Guidelines call for a sentence of 41 to 51 months in federal prison. He remains in custody pending sentencing.

Defense attorney Christopher Capozzi said during the plea hearing that his client was experiencing severe mental illness when he committed the alleged crimes.

Diagnosed with bipolar disorder, Dadig was hospitalized three times in Florida in the fall, Capozzi said.

After the hearing, the attorney told TribLive he wasn’t trying to minimize his client’s behavior or the genuine fear the women experienced.

“He is terrifically sorry for what he did, and he truly hopes and prays the women he harmed and their friends and family, and his family can take a step toward healing with this plea,” Capozzi said.

Dadig pleaded guilty to cyberstalking, interstate stalking and making interstate threats.

Among the allegations against him, Dadig published women’s names, photos and addresses on social media and in his podcast, called them his future wives and threatened them with violence.

“Dadig has referenced strangling people with his bare hands, called himself ‘God’s assassin,’ stated that women who ‘(mess)’ with him are ‘going to (expletive) hell,’ and declared on his podcast that he is nice until he is pushed to the breaking point, at which point he will ‘stop at absolutely nothing to bury you into the (expletive) ground,’” according to the criminal complaint.

Assistant U.S. Attorney Nicole Vasquez Schmitt told the judge on Thursday that in the course of his actions, Dadig also violated two protection-from-abuse orders that had been obtained against him.

Court documents show Dadig met several of the women in Pittsburgh-area fitness centers. After befriending them, he would harass and threaten them, including on his podcast.

In many instances, Dadig traveled to their workplaces, the government said.

Then, over the summer, prosecutors said, Dadig traveled to other states, including New York, Florida, Iowa and Ohio where he engaged in similar conduct.

According to the indictment against him, Dadig used ChatGPT as his “therapist” and “best friend,” and asked it questions about his future wife.

The AI tool told Dadig that his future wife would be fit, value health and that he might meet her in an athletic community or gym, the indictment said.

“Dadig viewed ChatGPT’s responses as encouragement to continue his harassing behavior,” the indictment said.

Capozzi said Dadig was severely depressed for much of 2024 and then last year became manic, spending excessively, traveling compulsively and experiencing grandiose thinking.

Dadig is now taking psychiatric medications.

“He understands he will have a mental health issue for the rest of his life and will have to maintain a sustained commitment to manage,” Capozzi said.