Members of the New York Police Department paid tribute to Officer Didarul Islam, one of the people killed in Monday's Manhattan shooting. Islam, 36, died Monday when a gunman opened fire inside a New York City office building.

A man stalked through a Manhattan office tower firing a rifle Monday, killing four people, including a New York City police officer, and wounding a fifth before taking his own life, officials said. The shooting took place at a skyscraper that is home to the headquarters of both the NFL and Blackstone,

The grief for New York Police Department Officer Didarul Islam stretched from Midtown Manhattan all the way up to the 47th Precinct in the Bronx Monday night.