The gunman who opened fire at a Manhattan office building Monday, killing four people before taking his own life, legally ...

The attorney for the man who sold what would become the deadly weapon in a mass shooting in New York City earlier this week said his client legally sold his co-worker the gun.

A long-time office cleaner said she encountered the suspected in a mass shooting in a Midtown Manhattan office building.

The gunmen who killed four people in a New York City shooting Monday was the son of a former Los Angeles Police Department ...

NYPD said the gunman purchased the fully-assembled AR 15-style rifle used in the shooting from his supervisor.

Tamura was a running back in high school and carried the ball 139 times for 774 rushing yards and 11 touchdowns as a junior ...

A man who killed four people at a Manhattan office building bought the rifle he used in the attack and the car he drove ...

A robotic dog was used to enter the Las Vegas home of the suspected New York gunman, who is accused of killing four people and himself in a shooting inside a Ma ...

Mourners packed a Bronx mosque to pay respects to a New York City police officer who was among the four people killed when a ...

Police said Etienne ducked behind the security desk for cover but as Tamura approached the elevators, he fatally shot the ...

Detectives searched the studio apartment of 27-year-old Shane Tamura, who shot five people on Monday before killing himself, ...

NYPD investigates Midtown Manhattan office shooting by Shane Tamura, revealing details from his Las Vegas home.