A gunman who killed four people at a Manhattan office building bought the rifle from his supervisor at a Las Vegas casino, ...

The man who stormed a Midtown Manhattan skyscraper paid his boss $1,400 (£1,100) for the semi-automatic rifle, police say.

"It was heartbreaking, shock, still in disbelief," said Walter Roby, the former assistant football coach at Granada Hills High School in Los Angeles.

As more information comes out about the man who shot and killed four people inside a midtown Manhattan office building before ...

Four people were killed on Monday when a man, identified by police as Shane Tamura, walked into the lobby of 345 Park Avenue ...

The man who stormed a Manhattan office tower with a gun, killing four people before killing himself, worked in the ...

The attack on a seemingly secure building has rattled workers and prompted managers to examine whether they are adequately ...