Authorities probe the weapon origins in the Manhattan shooting by Shane Tamura, who bought a rifle from his supervisor.

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.

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.

An attorney representing the man who sold Shane Tamura a rifle used in a shooting spree that killed four people in Manhattan said the sale was legal. “Rick Ackley legally sold a firearm to the suspect ...

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 ...

New York’s medical examiner’s office said it will examine the shooter’s brain for CTE. Results may not be public for months.

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.