This undated image provided by the New York Police Department shows Officer Didarul Islam, who was shot and killed at a ...

Then officials say the suspect then got into the elevator and headed to the 33rd floor, the headquarters of Rudin Management.

The man who killed four people at a Manhattan office building bought his AR-15-style rifle and getaway car from his Las Vegas ...

Authorities say the man who killed four people at a Manhattan office building bought the rifle he used in the attack and the car he drove across country from his supervisor at a Las Vegas casino ...