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

Hundreds gathered Thursday at the funeral of Officer Didarul Islam in the Bronx to pay their respects. (AP video: Joseph Frederick, Production: Vanessa A. Alvarez)

Officials said the gunman fatally shot himself after his attack, which set off a chaotic scene that rippled out into the heart of Manhattan during rush hour.