Authorities have identified Shane Tamura, a 27-year-old man from Las Vegas, as the suspect in a mass shooting that occurred in Midtown Manhattan on Monday evening. Tamura is accused of killing four people, including a police officer, before taking his own life on the 33rd floor of a building at 345 Park Avenue. The incident unfolded around 6:28 p.m. when Tamura entered the building armed with an M4 rifle.

New York City Mayor Eric Adams stated that Tamura appeared to be targeting offices associated with the National Football League (NFL) but mistakenly entered the wrong elevator. Surveillance footage captured him exiting a black BMW and walking toward the building's entrance. A handwritten note found on his body indicated he had grievances against the NFL, allegedly linked to an unverified claim of suffering from chronic traumatic encephalopathy (CTE), a degenerative brain disease often associated with repeated head trauma in contact sports.

Tamura had a history of mental health issues, with two documented crisis holds in Nevada in 2022 and 2024. He also had a previous arrest in 2023 for trespassing at a casino. Despite having played high school football in Southern California, authorities found no evidence that he had sustained a traumatic brain injury or had any known connection to the NFL.

During the shooting, Tamura first opened fire in the lobby, fatally wounding Didarul Islam, a 36-year-old off-duty NYPD officer who was working security at the time. Islam was remembered as a hero who made the ultimate sacrifice. He is survived by his wife and two sons, with a third child on the way.

After the initial attack, Tamura proceeded to the 33rd floor, where he ultimately shot himself. The sole surviving victim, an NFL employee, remains hospitalized with serious injuries. Several others sustained minor injuries while fleeing the scene.

Tamura's vehicle, which traveled cross-country from Nevada, was found to contain a loaded revolver, ammunition, and medication. The car's journey included stops in Colorado, Nebraska, and Iowa before entering New York City.

In the aftermath of the shooting, New York officials expressed their condolences to the victims' families. Governor Kathy Hochul called for a nationwide ban on military-style weapons, emphasizing the need for legislative action to prevent further tragedies. The investigation is ongoing, with the FBI and U.S. Attorney’s Office assisting local authorities.