News Summary
A mass shooting in Midtown Manhattan has resulted in the deaths of four individuals, including an off-duty NYPD officer. The shooter, Shane Devon Tamura, opened fire in the lobby of a building, later taking his own life on the 33rd floor. The incident has raised alarms about mental health and gun control, prompting city officials to emphasize public safety. The ongoing investigation seeks to understand how the shooter acquired the weapon and investigates his background, including previous mental health issues.
New York City – A mass shooting in Midtown Manhattan on Monday, July 28, 2025, claimed the lives of four individuals, including an off-duty NYPD officer. The shooter, identified as Shane Devon Tamura, a 27-year-old resident of Las Vegas, had a documented history of mental health issues and opened fire with an M4 rifle at approximately 1:30 p.m. in the lobby of a building at 345 Park Avenue.
The deceased victims include 36-year-old NYPD officer Didarul Islam, along with two other unnamed individuals. After initial shots were fired in the lobby, Tamura took an elevator to the 33rd floor, where he continued his rampage before ultimately taking his own life. Details released by officials indicate that security camera footage captured Tamura as he entered the lobby and began shooting immediately.
Injuries were also reported among other individuals present during the attack. One man remains hospitalized in critical but stable condition, while four others suffered minor injuries as they attempted to escape the chaos. The building, which houses several prominent tenants including the NFL, KPMG, and Blackstone, experienced significant disruption due to the incident.
Investigation and Background Details
NYPD Commissioner Jessica Tisch revealed that a note found among Tamura’s belongings indicated he was suffering from Chronic Traumatic Encephalopathy (CTE), a progressive brain condition often associated with repeated head trauma, particularly in contact sports like football. Tamura’s history includes playing football in high school in Southern California, where he was described by former teammates as a quiet individual, showing no signs of violent behavior.
Tamura had been employed as a security guard at a Las Vegas casino and had failed to appear for his most recent shift, raising concerns among acquaintances. Detectives are currently tracing his movements from Las Vegas to New York City, including scrutiny of his vehicle, a black BMW found in Columbia, New Jersey, registered in his name in Nevada. Inside the BMW, authorities recovered a rifle case, ammunition, a loaded revolver, medication prescribed to Tamura, and a backpack.
Ongoing Investigation
The NYPD is actively investigating how Tamura acquired the M4 rifle used during the attack. Authorities are tracing the weapon back to its purchase, reportedly made at a gun store in Nevada. Moreover, investigators believe Tamura may have intended to target the NFL’s offices located within the building but mistakenly took a wrong turn when navigating the structure.
Community Impact and Response
The events of the shooting have struck a chord within the community and raised questions about mental health awareness and gun control measures. As the investigation unfolds, city officials and law enforcement have pledged to prioritize public safety in response to this tragic event. While the inquiry into what motivated Tamura continues, the focus remains on supporting victims and their families during this difficult time.
As more details emerge, the NYPD remains committed to providing updates while the community grapples with the aftermath of this shocking incident.
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Additional Resources
- ABC News
- Wikipedia: Mass Shooting in the United States
- CNN
- Google Search: Shane Devon Tamura
- NBC News
- Google Scholar: Gun Control Mental Health
- Fox News
- Encyclopedia Britannica: Mass Shooting
- The New York Times
- Google News: Midtown Manhattan Shooting

Author: STAFF HERE NEW YORK WRITER
NEW YORK CITY STAFF WRITER The NEW YORK CITY STAFF WRITER represents the experienced team at HERENewYorkCity.com, your go-to source for actionable local news and information in New York City, the five boroughs, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as New York Fashion Week, Macy's Thanksgiving Day Parade, and Tribeca Film Festival. Our coverage extends to key organizations like the Greater New York Chamber of Commerce and United Way of New York City, plus leading businesses in finance and media that power the local economy such as JPMorgan Chase, Goldman Sachs, and Bloomberg. As part of the broader HERE network, including HEREBuffalo.com, we provide comprehensive, credible insights into New York's dynamic landscape.