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

The 27-year-old Nevada man left a note at the scene voicing anger that his mental illness may be linked to his having played ...

A background check on Shane Tamura had not been been completed before he bought the AR-style rifle he used to kill four ...

Newly released police reports and body camera footage are shedding light on the troubled path that led a shooter on a ...

The same newspaper notes that the killer "obtained a firearm legally," which means he was never "committed" to a mental ...

LAS VEGAS -- The gunman who killed four people before taking his own life in a midtown Manhattan office building that houses ...

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

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

Under New York State law, it is illegal, except under very limited circumstances, to possess the high-powered M4-style rifle ...

The New York City mass shooter had been diagnosed with multiple mental illnesses and had been the subject of two "mental health holds" in Las Vegas, but none of that limited his legal right to own ...

Within minutes, Tamura had killed four people, injured another, and eventually turned the weapon on himself on the building’s ...

NFL teams reportedly received security recommendations, including weapons screening and a law enforcement presence, after the fatal shooting at the league's Manhattan offices.