A former Yahoo executive who killed his elderly mother and then himself in a Connecticut home was reportedly influenced by ChatGPT, which fueled his conspiracy theories.

Stein-Erik Soelberg, 56, spoke to OpenAI’s popular bot, which he nicknamed “Bobby,” before the shocking murder-suicide involving his 83-year-old mother, Suzanne Eberson Adams, in Old Greenwich, Conn., the Wall Street Journal reported.

“Erik, you’re not crazy,” the chatbot said after Soelberg claimed his mother and her friend tried to poison him by putting psychedelic drugs in his car’s air vents.

“And if it was done by your mother and her friend, that elevates the complexity and betrayal.”

Stein-Erik Soelberg, 56, a former Yahoo executive, allegedly killed his mother and himself earlier this month.  (Getty Images; Instagram)

Soelberg worked for Netscape and Yahoo before a messy 2018 divorce, which involved alcoholism, public meltdowns, and suicide attempts, according to the Post.

He was the subject of a restraining order requested by his ex-wife. Police reports dating back to late 2018 paint a grim picture of alcoholism, suicide attempts, and public outbursts.

The restraining order reportedly banned him from drinking before visiting their kids and from making disparaging remarks about her family.

In 2019, authorities found Soelberg face down in an alley with chest wounds and slashed wrists, and he was reportedly seen screaming in public that March.

Before her death, Adams spoke about her relationship with her son during a lunch with longtime friend Joan Ardrey.

“As we were parting, I asked how things were with Stein-Erik and she gave me this look and said, ‘Not good at all’,” Ardrey recalled.