LAS VEGAS -- The gunman who killed four people before taking his own life in a midtown Manhattan office building that houses the NFL's headquarters had for years sought medical help for frequent, ...

Officer Didarul Islam, 36, who was guarding the building on a paid security job when he was killed, had served as a police ...

The suspected gunman who killed three people outside the largest casino in Reno, Nevada, before police officers shot and ...

Sebije Nelovic always felt safe at 345 Park Avenue. For nearly three decades, the Albanian native cleaned the ritzy Manhattan ...

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

FBI assists Montana police in search for shooting suspect Michael Paul Brown who remains at large after attacking multiple ...

Los Angeles police have identified the alleged gunman who opened fire on a driver​ moments after he crashed into a crowd of ...

According to Detroit Police Captain Sederick Dunbar, the victim was taken to an area hospital where he is expected to recover ...

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

Officials said the gunman fatally shot himself after his attack, which set off a chaotic scene that rippled out into the ...

Two children, two 16-year-olds and a rec center employee were injured. A 16-year-old remains in critical condition.

A gunman opened fire at a neighborhood bar in the small town of Anaconda, Montana, on Friday morning, killing four people ...