The man who opened fire at a Midtown Manhattan office building last month, killing four people and injuring another before ...

Newly released body camera footage from Las Vegas police shows past encounters with Shane Tamura, the gunman in last month’s ...

The evidence documents Tamura's years-long struggle with mental health before he opened fire in a Midtown office building.

The former high school football player left a note at the scene repeatedly mentioning “CTE” — chronic traumatic ...

The gunman from Las Vegas who committed the mass shooting last week in New York City repeatedly threatened to harm himself, ...

The Las Vegas police released documents and records describing the mental health breakdowns that the man who killed four ...

Shane Tamura entered 345 Park Ave. in Midtown Manhattan on July 28 and opened fire inside of the high-rise office building. He was armed with an M4 semi-automatic rifle and killed four people before ...

New York City police detectives searched a studio apartment in Las Vegas that belonged to the suspected gunman in Monday's ...

A lone gunman walked into a midtown Manhattan office building Monday and opened fire, killing four people, including an NYPD ...

During evening rush hour in New York City on Monday, a man calmly walked into a Park Avenue office building lobby and killed ...

Officer Didarul Islam, 36, who was guarding the building on a paid security job when he was killed, had served as a police ...

Nevada's gun laws are again under scrutiny after a Las Vegas man opened fire in Midtown Manhattan, killing four people and ...