Trove of Shane Tamura’s newly released records shed light on Midtown shooter’s disturbing mental health history

The frantic mom of mass shooter Shane Tamura had repeatedly called 911 on her mentally ill son in the years before he shot up a Manhattan skyscraper — once telling cops he was threatening to kill himself and that he suffered from a sports-related concussion, newly released audio shows.

The 911 audio was among a trove of materials released by cops in Tamura’s hometown of Las Vegas on Tuesday — as the NYPD continues to probe last week’s bloodshed in which he killed four innocent people when he stormed the towering Midtown office building.

The 27-year-old mass shooter had claimed he had CTE and accused the NFL, which has offices at 345 Park Ave., of covering up the dangers of brain injuries in his apparent suicide note that was stashed in his wallet when he opened fire in the high-rise, sources previously told The Post.

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Three years earlier, Tamura’s mom had made similar claims when she called cops on him, according to the audio.

On Sept. 12, 2022, Tamura’s mother hurriedly called emergency dispatchers to warn them that her son kept a gun in his backpack and was threatening to kill himself.

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“He said he’s going to kill himself,” she said in the recording. “He didn’t say he made a plan, he just said he just can’t take it anymore.”

Tamura’s mother had placed the call from a stairwell outside a Budget Suites Motel because she didn’t want him to know she was calling the police, authorities said.

“He just started crying and slamming things and said I’m making him worse, so I said, ‘I’ll step outside,’” she said. “’I don’t want you to be upset, but I’m afraid to leave.’”

She also warned them that her son was under a doctor’s care for “depression, concussion like sports concussion, chronic migraines, and insomnia.”

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The incident was one of two that led to Tamura being admitted to hospitals for mental health crises.

In 2024, he was committed to a hospital again after calling his mother to tell her he wanted to hurt himself, police bodycam footage from that incident showed.

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“He was just crying and said, ‘I’m not going to be able to go any further,’” his mother told the 911 dispatcher.

Again, she noted that he struggled with mental health issues, including bipolar disorder, anxiety and depression.

When cops responded to his home, bodycam footage captured medics wheeling Tamura away for treatment.

Las Vegas cops said the records, which would normally be withheld due to privacy protections, were being released “in light of the extraordinary circumstances.”

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After driving from Las Vegas, Tamura rushed into the Midtown office building armed with an M-5 assault rifle last Monday at evening rush hour — killing Blackstone NYPD Police Officer Didarul Islam, before taking the elevator to the 33rd floor.

There, he opened fire on Rudin Management associate Julia Hyman — then killed himself.

Tamura shot himself in the chest and asked that his brain be studied in the note he left behind — suggesting he suffered from CTE from playing in the NFL, despite never playing professional football. 

He played high school football in California, where he was described as a standout player.

Tamura’s brain will be examined for CTE as part of his autopsy. 

With Post wires