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

New reports suggest Shane Tamura dealt with multiple head injuries before attacking NFL headquarters in Manhattan, New York ...

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 Las Vegas gunman who killed four people in a Manhattan office building housing the NFL’s headquarters before taking his own life had sought medical treatment for debilitating headaches, ESPN ...

A 2017 study found that more than 87% of football players tested across all levels — high school, college, and pros — tested ...