Shane Tamura, who killed four people and then was posthumously shot at the NFL headquarters, was posthumously diagnosed with Chronic Tomatic Encephalopathy posthumously, according to a statement by the Chief Medical Examiner.
In a note found in his wallet after the shooting, 27 -year -old Tamura claimed that he believed that he had CTE and wanted to test his brain after his death. The office of the medical examiner determined the “vague evidence” of CTE in Tamura’s brain tissues. The test scheduled tamura was suffering from “low-step CTE”. CTE can only be diagnosed only after death.
Tamura entered 345 Park Avenue around 6:30 pm on July 28 and killed four people: an off-duty police officer Didarul Islam; Wesley leptatar, a real estate executive in blackstone; Julia Hyiman, a colleague in Rudin Management and a security officer Aland Eye. He also injured an NFL employee and according to law enforcement, it was believed that an attempt was made to reach the NFL headquarters but took the wrong lift.
In August, a source close to Tamura’s family told ESPN that Tamura began to play football at the age of 6 through a high school in the Los Angeles area before going to Nevada, where he worked in private security and then under monitoring in Las Vegas Casino.
The source also stated that ESPN Tamura is suffering from mental health issues as an adult, including headache and injected behind his head to deal with the issue.
According to the information issued by the Las Vegas Police Department, the Las Vegas Law Enforcement Officers were also called twice during their time for mental health check -up in the city. It also included a 2022 call, where Tamura’s mother was worried that her son was going to kill himself. In that call, Tamura’s mother told the law enforcement that she was being treated for depression, convention, chronic migraine and insomnia.
He also got a mental health hold in 2024 and was arrested in the Red Rock Casino of Henderson, Nevada, after disagreeing after Casino’s victory in 2023. The prosecutors refused to accuse Tamura in the 2023 case.
Anthony Olivieri of ESPN contributed to this report.

