Follow along for live updates with the New York City shooting, where police investigate motive after five people, including the gunman, are killed in Monday shooting

An off-duty New York City police officer and an executive at an investment firm were among four people killed by a gunman at a Manhattan office tower

FBI Deputy Director Dan Bongino said agents from the bureau’s New York field office were responding to the area to provide support.

Four people were killed and a fifth was injured in a mass shooting at a Midtown Manhattan office building on Monday. Among the victims was an officer who was a dad of two with a third on the way. Here's what we know about the victims: Officials identified the others killed in the shooting as two men and a woman,

At least three people were killed and three others were injured by a gunman at the Grand Sierra Resort casino in Reno, Nevada, on Monday, authorities said.Reno Police Chief Kathryn Nance and Sparks Police Chief Chris Crawforth were among a number of officials who held an afternoon press conference to provide an update on the shooting,