United States – A New York City medical examiner has confirmed that Shane Tamura, the gunman who killed four individuals in a Manhattan office tower housing the NFL headquarters, was suffering from early-stage Chronic Traumatic Encephalopathy (CTE). In a note, Tamura attributed blame to the NFL for concealing the risks associated with the brain disease linked to repeated head trauma, reports 24brussels.
Medical Examiner Confirms CTE in Shane Tamura’s Brain
On 25-26 September 2025, the New York City Office of Chief Medical Examiner (OCME) disclosed that extensive neuropathological analysis revealed “unambiguous diagnostic evidence” of CTE in Tamura’s brain tissue. The findings corresponded with a low-stage classification of CTE, a degenerative brain condition primarily found in individuals with a history of repeated head injuries, especially athletes and military veterans.
Details of the Manhattan NFL Office Shooting
Tamura initiated the attack on 28 July 2025, opening fire in the lobby of 345 Park Avenue, the headquarters of the National Football League. He killed four people and injured another before taking his own life. The victims included NYPD Detective Didarul Islam, security guard Aland Etienne, NFL employee Julia Hyman, and office worker Wesley LePatner.
Investigators approached the event as a deliberate act rooted in Tamura’s frustrations with the NFL, driven by allegations that the organization concealed the risks associated with brain-related injuries.
Gunman’s Note Accuses NFL of Concealing Brain Injury Risks
In Tamura’s possession was a three-page note in which he claimed to have CTE and urged investigators to “Study my brain.” He accused the NFL of prioritizing profits over player safety by failing to disclose the dangers of chronic head trauma.
In his note, Tamura attributed his actions to his brain injury and expressed remorse, stating, “I’m sorry,” while advocating for further research into CTE to prevent future tragedies.
CTE is a progressive neurodegenerative disease that arises from repeated brain trauma, including concussions prevalent in contact sports. It can manifest in symptoms such as memory loss, mood disorders, impulsivity, and cognitive deterioration.
Diagnosis of CTE is only possible post-mortem through brain tissue analysis, although a growing body of evidence links the disease to symptoms seen in numerous former NFL and professional athletes.
Public and NFL Response to Findings
The confirmation of CTE in Tamura’s brain has rekindled discussions regarding the impact of head trauma in football and the accountability of institutions like the NFL. The league has reaffirmed its commitment to player safety and ongoing research while distancing itself from Tamura’s violent actions.
Experts caution that while CTE may influence behavior, the relationship between the disease and violent behavior is intricate and not fully understood.
Legal and Societal Implications
Tamura’s case prompts critical examination of mental health, public awareness of brain injuries, and protection mechanisms for athletes and individuals vulnerable to head trauma. The incident raises significant concerns about the public safety implications of untreated brain disorders and has sparked calls for increased funding for research.
Advocates are pushing for greater transparency and preventive measures within the realms of sports and military service to mitigate the risks associated with CTE.
The confirmation that Shane Tamura suffered from CTE adds a vital dimension to comprehending the motives behind the tragic shooting in Manhattan, which resulted in four fatalities. His accusatory note directed at the NFL further intensifies the discourse surrounding brain injuries within contact sports.
This case highlights the urgent need for sustained scientific and medical investigation into CTE and its extensive effects on individuals and society, while emphasizing the necessity for improved safety protocols within sports and better mental health support.
