LOS ANGELES—The mother of the man who killed four people at a Manhattan office tower home to the NFL told 911 dispatchers during a 2022 incident when he threatened to kill himself that he suffered from a sports-related concussion and other issues, new information released by Las Vegas police Tuesday revealed.
Shane Tamura, 27, had a documented history of mental health problems and carried a handwritten note in his wallet when he carried out the shooting that claimed he had chronic traumatic encephalopathy, known as CTE, investigators said. He fatally shot three people in the building lobby before taking an elevator to the 33rd floor, killing a fourth victim and then ending his own life, according to police.
