Shane Devon Tamura became the perpetrator of one of New York City's deadliest shootings in decades after opening fire inside a Midtown Manhattan office tower on July 28, 2025. The attack killed four people and injured several others before Tamura died by suicide. Investigators concluded that he had intended to target the National Football League (NFL) headquarters housed within the building and found writings indicating grievances related to chronic traumatic encephalopathy (CTE), although the full motive remains under investigation.
Early Life
Shane Devon Tamura was born in 1998 and grew up in California, where he played high school American football before later moving to Nevada.
As an adult, Tamura worked in casino surveillance and security in the Las Vegas area. Authorities stated that he had a documented history of mental health issues but no significant violent criminal history before the attack.
Killing Spree
On July 28, 2025, Tamura entered 345 Park Avenue in Midtown Manhattan armed with a semi-automatic rifle.
After opening fire in the building's lobby, he continued into the office tower, killing four people, including off-duty New York City Police Department officer Didarul Islam, before proceeding to an upper floor where he fatally shot another victim. Tamura then died by suicide.
Several other people were injured during the attack, making it one of New York City's deadliest mass shootings in recent decades.
Modus Operandi
Investigators determined that Tamura drove from Las Vegas to New York over several days before carrying out the attack.
Police recovered a rifle, additional weapons, ammunition, and handwritten notes in which Tamura expressed grievances relating to football and chronic traumatic encephalopathy (CTE), requesting that his brain be examined after his death. Authorities believe he intended to target the NFL headquarters but entered the wrong elevator bank, leading him to another floor of the building.
Capture
The attack ended at the scene when Tamura died by suicide before officers could take him into custody.
The New York City Police Department, FBI, and other agencies subsequently conducted an extensive investigation involving surveillance footage, forensic evidence, digital records, and interviews to reconstruct his movements from Nevada to New York.
Trial & Sentence
Shane Devon Tamura was never prosecuted because he died during the incident.
Following his death, investigators concluded their criminal investigation while continuing to examine his writings, digital activity, and medical history to better understand the circumstances surrounding the attack.
Notes
The shooting prompted renewed discussion in the United States regarding mass violence, mental health, building security, and chronic traumatic encephalopathy (CTE). Several months after the attack, the New York City Office of the Chief Medical Examiner reported finding evidence of low-stage CTE in Tamura's brain during the post-mortem examination.
The attack also led to enhanced security measures at the office tower and across other prominent corporate buildings in New York City.
Quotes
"Study my brain please."— Shane Devon Tamura
Media
📺 Documentaries / TV Series
The Case of Shane Devon Tamura (2025)
Examines the Midtown Manhattan office tower shooting, the investigation, Tamura's background, and the evidence surrounding the attack.
NewsNation Special Report: Midtown Manhattan Shooting
Reconstructs the timeline of the attack, the police response, and the investigation into Tamura's motives.
CNN Special Coverage
Profiles the shooting, forensic investigation, and the ongoing examination of Tamura's writings and medical history.
🎥 Major Video Interviews
New York City Police Department press conferences
Authorities discussed the shooting, the investigation, Tamura's movements, forensic evidence, and the suspected motive.
Court and investigative briefings
Officials examined the evidence recovered from the scene, victim identifications, and the findings released following the investigation.
🎙️ Podcasts
The Daily
Examined the Midtown Manhattan shooting, the investigation, and the broader issues raised by the attack.
The Journal.
Covered the investigation, Tamura's background, and the suspected motive.
CNN One Thing
Discussed the attack, law enforcement response, and its aftermath.
📰 Written Media Coverage
The Shane Devon Tamura case received extensive media coverage from:
Reuters, Associated Press, The New York Times, The Washington Post, Los Angeles Times, ESPN, ABC News, CNN
Major themes included:
Midtown Manhattan shooting, NFL headquarters, New York City, mass shooting, CTE, mental health, Didarul Islam, office tower attack, suicide, and one of New York City's deadliest shootings in recent decades.
