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

A man who killed four people at a Manhattan office building bought the rifle he used in the attack and the car he drove across country from his supervisor at a Las Vegas casino, authorities said ...

The $1,400 M4 assault rifle New York City mass shooter Shane Tamura used to kill four people inside a Midtown Manhattan ...

The gunman accused of killing four people in a Midtown Manhattan office tower bought the AR-15-style rifle used in the attack ...

Police say a gunman who killed four people in a Manhattan skyscraper before taking his own life claimed to have a brain ...

A supervisor at the Las Vegas casino where Shane Devon Tamura worked legally purchased the gun used in the Midtown Manhattan shooting and sold it to him for $1,400, a law enforcement official told CNN ...

The disease has been diagnosed in more than 100 former NFL players and arisen as an existential threat to the United States’ most powerful pro sports league.