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Legal experts are calling it the digital equivalent of leaving your ID at the crime scene.

Former first-round NFL pick Darron Lee is in a Tennessee jail on a first-degree murder charge after investigators say they uncovered his use of ChatGPT in the immediate aftermath of the alleged killing.

READ:Former NY Jets First Round Pick Darron Lee Charged In Girlfriend's Murder

Most people use ChatGPT to debug code or draft emails. Lee, authorities allege, used it to workshop an alibi.

Lee was arrested in February 2026 in Tennessee in the death of his girlfriend, Gabriella Carvalho Perpetuo. He initially claimed she died after a "shower slip," a story that quickly unraveled, undercut, investigators say, by his own digital trail, including AI queries.

According to investigators (viaWTVC), when police arrived at the Ooltewah home, Lee said he found Carvalho Perpetuo unresponsive and suggested she may have fallen.

PITTSBURGH, PA - OCTOBER 09: Linebacker Darron Lee #50 of the New York Jets follows the action against the Pittsburgh Steelers at Heinz Field on October 9, 2016 in Pittsburgh, Pennsylvania. The Steelers wore their Throwback Uniforms. (Photo by Al Pereira/Getty Images)

But detectives reported a far different scene: blood spatter in nearly every room, broken glass, and cleaning supplies placed in strange locations, details they say indicated an effort to scrub the home.

The medical examiner’s findings were even more damning, citing a broken neck, severe brain injury, a stab wound to the abdomen and a human bite mark on her thigh.

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