The NYPD sent detectives to Las Vegas to work with federal law enforcement in the investigation into Monday's deadly shooting ...

The gunman in the deadly shooting at a New York City office tower had a background in casino surveillance and once held a ...

Authorities say the man who killed four people at a Manhattan office building bought the rifle he used in the attack and the ...

The attorney for the man who sold what would become the deadly weapon in a mass shooting in New York City earlier this week ...

New York City investigators believe a co-worker of the Las Vegas man who killed four, including a police officer, provided a ...

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

In an exclusive report, a recent search of Shane Tamura's Las Vegas studio apartment, located just blocks from the Strip, has ...

Exclusive video shows SWAT teams executing a search warrant at the Las Vegas apartment of Shane Tamura, the man behind Monday ...