New York police honor fallen officer Didarul Islam with funeral services after he was killed by a gunman in a Midtown office building on Monday evening.

Shane Devon Tamura, 27, was identified as the shooter who had driven across the country from Nevada and arrived in New York City hours before the shooting, according to officials. Tamura shot himself in the chest on the 33rd floor of the building before police found him.

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,