New York City police officers lined city streets on Thursday morning to honor their colleague who was killed when a gunman entered a Midtown Manhattan office building and opened fire earlier this week.

Officer Didarul Islam was one of four people killed inside the building on Monday evening. Islam, a 36-year-old immigrant from Bangladesh, was a father of two whose wife is pregnant with their third child. 

On Thursday, services for Islam began with a viewing at Parkchester Jame Masjid, a mosque in the Bronx. 

Officers in dress uniform lined up four rows deep in front of the mosque before viewings began. 

The viewings on Thursday will be followed by a prayer service. Islam will then be buried at a cemetery in Totowa, New Jersey.

“He was doing the job that we asked him to do,” Police Commissioner Jessica Tisch said in the immediate aftermath of the shooting. “He put himself in harm’s way. He made the ultimate sacrifice. He died as he lived. A hero.”

New York City Mayor Eric Adams, a former NYPD officer, met with Islam’s family and attended the dignified transfer of the slain officer. Adams said that Islam “embodies what this city is all about. He’s a true blue New Yorker, not only in the uniform he wore.”

New York Police officers gather outside the Parkchester Jame Masjid mosque for the funeral of officer Didular Islam, Thursday, July 31, 2025, in New York. (AP Photo/Yuki Iwamura)

Police have identified the gunman as 27-year-old Shane Tamura. Tamura, a Las Vegas resident with a history of mental health issues, began shooting in the lobby before moving to another floor and later turning the gun on himself.

Fox News Digital’s Rachel Wolf and The Associated Press contributed to this report.