At least four people, including a New York Police Department (NYPD) officer, were killed in a shooting on Park Avenue in midtown Manhattan skyscraper after a lone gunman on Monday evening opened fire inside a building home to the corporate offices of the National Football League (NFL) and investment firm Blackstone, US media outlets have reported.

 

Media reports suggest that the shooter, identified as 27-year-old Shane Devon Tamura, died from a self-inflicted gunshot wound. NYC Police Commissioner Jessica Tisch said that after entering the building and shooting one person on the 33rd floor of the Park Avenue building, “he then proceeds down a hallway and shoots himself in the chest.”

 

The lone gunmen had a mental health history, media reports quoted police as saying, adding that the shooter's motives are still being determined. 

 

Citing a source with knowledge of the investigation, CNN reported that the gunman had a suicide note in his back pocket alleging that he suffered from CTE, a brain disease linked to head trauma. In the note, he also asked for his brain to be studied.

 

The skyscraper where the deadly shooting occurred has long been a home for major multinational companies, located in the heart of Midtown Manhattan, where corporate staff flow in and out every day.

 

The building, 345 Park Avenue, is owned by Rudin Management, which bills itself as one of the largest privately owned real estate companies in the city.

 

Who was the officer?

 

The killed NYPD officer, Didarul Islam, was a 36-year-old husband and father. He was off-duty at the time and working security in the building where the shooting occurred. He had served in the NYPD’s 47th precinct in the Bronx for three and a half years, Mayor Eric Adams said in a news conference Monday night.

 

The mayor stated that Islam was an immigrant from Bangladesh, and his parents’ only son, adding, “Everyone we spoke with stated he was a person of faith and a person that believed in God and believed in living out the life of a godly person.”