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,

Police lined the streets of New York City to pay their respects to fellow officer Didarul Islam, who was among the four victims of a gunman’s rampage Monday at a Manhattan office tower.

Politicians, relatives and members of the New York City Police Department are gathered at the funeral for the "hero" officer who was one of four people killed in the Midtown Manhattan mass shooting. Didarul Islam,