Las Vegas police: NYC Gunman’s mother said in 2022 that he had a concussion related to sport

Shane Tamura, 27, had documented history of mental health problems and carried a handwritten note in his wallet when he made the shooting which claimed to have had chronic traumatic encephalopathy, known at CTE, the investigators told. He fatally killed three people in the building hall before taking an elevator on the 33rd floor, killing a fourth victim, then ending his own life, according to the police.

He accused the football league of hiding the dangers of brain lesions related to contact with sports. Tamura did not play professional football but played during her high school years in southern California, where he grew up.

His mother told the distributors on September 12, 2022 that his son was in the care of a doctor for “depression, concussion such as sports cerebral, chronic migraines and insomnia”. She also said he was taking sleeping pills, smoked marijuana and kept a weapon in his backpack. It was one of the two incidents that led Tamura to be admitted to hospitals for mental health crises.

“He said he was going to commit suicide,” she said during the call recorded at 911. “He didn’t say he had made a plan, he just said that he couldn’t bear it anymore.”

Tamura’s mother has made the call from the outside of a budget motel. She told the distributors that she would expect in the stairwell because she did not want Tamura to know that she had called the police.

“He just started to cry and slam things and said I was doing worse, so I said,” I’m going to go out “,” she said. “I don’t want you to be upset, but I’m afraid to leave.”

Tamura was again engaged in a hospital in 2024 after calling her mother and made declarations on the desire to injure himself, according to a first speaker captured on the video of the body camera published by Las Vegas police.

The Metropolitan Police Service of Las Vegas said that the files, which would normally be hidden due to privacy protections, were released “in the light of extraordinary circumstances”.

Tamura worked at the Offshoe Las Vegas surveillance service until last week, when the authorities say he led his car to New York and made the shooting. He bought the rifle he used in the attack and the car he led from his supervisor to the casino.

New York detectives searched the Tamura locker at Casino Horseshoe on Wednesday and found a tripod for his rifle, a box for a revolver found in his car in New York and ammunition for both firearms, the police service said.

Police said they also found a psychiatric medication, epilepsy medication and anti-inflammatory drug that had been prescribed in Tamura in his apartment.

His psychiatric history would not have prevented it from legally buying the revolver, unless parents or the police requested a so -called protective order of the risks of the courts. However, a new state law in force this month will allow agents to confiscate firearms in the immediate vicinity of a person placed on taking a mental health crisis.

Las Vegas police also published files related to two other obstacles to the law on Tuesday. Tamura was arrested for intrusion into a casino in 2023, where he was agitated after he was asked to show his identity document to recover his earnings and was invited to leave when he refused to do. It was also quoted for having driven an unregistered car without a license in 2024.