A former high school football standout turned casino security guard left behind a multi-page manifesto blaming the National Football League (NFL) for his brain condition before executing a deadly shooting spree in Manhattan that claimed four lives, including an NYPD officer.
Shane Tamura, 27, targeted the NFL headquarters building at 345 Park Avenue on Monday evening, carrying an M4 rifle and a lengthy written explanation for his actions.
The document revealed his belief that football caused his struggle with chronic traumatic encephalopathy, a degenerative brain disease linked to repeated head trauma.
The gunman specifically requested in his writings that his brain be studied after his death, according to law enforcement sources who spoke with the New York Post.
Tamura ultimately turned the weapon on himself on the building’s 33rd floor, ending the rampage with a self-inflicted gunshot wound to the chest.
NYPD Commissioner Jessica Tisch detailed the timeline of terror that began unfolding at approximately 6:28 p.m. when emergency calls started flooding in about an active shooter situation at the Park Avenue skyscraper.
Surveillance footage captured Tamura exiting a double-parked black BMW between 51st and 52nd Street, wielding the assault-style rifle as he approached the building’s entrance.
The security cameras documented his methodical approach to the high-rise that houses the NFL’s corporate offices on floors five through eight.
Upon entering the lobby, Tamura immediately turned right and fatally shot NYPD Officer Didarul Islam, 36, who was responding to the scene.
The officer became the first casualty in what would become a devastating attack on innocent civilians and law enforcement.
The shooter then targeted a woman who had taken cover behind a pillar in the lobby, gunning her down as he continued spraying bullets throughout the building’s ground floor.
His systematic approach to violence demonstrated a calculated plan rather than random acts of aggression.
Tamura proceeded toward the elevator bank where he encountered a security guard crouching at his desk.
The guard became the third fatality as the gunman continued his deadly path through the building’s interior spaces.
A fourth person was shot and wounded in the lobby during the initial phase of the attack.
This victim survived the encounter and remained in critical but stable condition at a local hospital, according to police reports.
In a puzzling moment during the chaos, Tamura allowed one woman to exit the elevators completely unharmed before boarding the lift himself.
The gunman traveled to the 33rd floor, where Rudin Properties maintains its offices as the building’s owner.
Witnesses reported that Tamura “begins to walk the floor, firing as he traveled,” creating additional terror among office workers.
One man was shot and killed on the 33rd floor, bringing the total death count to four victims plus the shooter himself.
The final victim’s identity has not been publicly released pending family notification.
Tamura then moved down a hallway where he ended his own life with a gunshot to the chest, according to Commissioner Tisch’s official account.
The exact duration of the entire incident remains unclear to investigators.
Commissioner Tisch confirmed the scene was secured when she posted on social media at 7:52 p.m., stating: “The scene has been contained and the lone shooter has been neutralized.” This timestamp suggests the rampage lasted over an hour from initial reports.
The surviving lobby victim appears to be an NFL employee, based on a letter NFL Commissioner Roger Goodell sent to league staff.
Goodell informed employees that one of their colleagues had been “seriously injured” in the shooting attack, per the Post.
Tamura worked as a security guard at a Las Vegas casino but had achieved recognition as a talented football player during his high school years in California.
Former classmates described him as having tremendous athletic potential that seemed to fade unexpectedly.
“It looked like the sky was the limit, and then it wasn’t anymore,” former classmate Caleb Clarke told NBC News, reflecting on Tamura’s dramatic transformation from promising athlete to deadly gunman.
Tamura graduated from Golden Valley High School in 2016, where he played running back on the varsity football team. His coach had expressed high expectations for Tamura and other star players ahead of his senior season, telling the Los Angeles Times he anticipated “big things” from the talented athlete.
The Post further noted that law enforcement sources confirmed that Tamura had a “documented mental health history,” though specific details about his psychological treatment or diagnoses have not been made public.
The connection between his mental health struggles and his belief about football-related brain injury remains under investigation.
The post Former High School Football Star Blames NFL for Brain Disease in Deadly Midtown Rampage That Left NYPD Officer Dead, Handwritten Note Reveals appeared first on Resist the Mainstream.
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Author: Jordyn M.
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