As more information comes out about the man who shot and killed four people inside a midtown Manhattan office building before turning the gun on himself, there is a question of whether he should have been allowed to keep his concealed carry permit.

A New York City police officer and three other people were killed in a shooting in Midtown Manhattan on Monday evening, police confirmed at a late-night news conference.

Police have identified the man who they say entered a Midtown Manhattan office building wearing body armor and opened fire, killing four people with a high-powered rifle, as Shane Devon Tamura.

A lone gunman opened fire at a Manhattan office tower that houses the NFL and Blackstone, killing four people.