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 ...

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

The man who shot four people dead with an assault-style rifle inside a Midtown Manhattan skyscraper was carrying a "suicide ...

Police have identified the man who entered a Midtown Manhattan office building wearing body armor and opened fire killing ...

New York City’s deadliest shooting in 25 years – in a state with some of the toughest gun laws in the nation – is raising ...

"He comes with a machine gun. He's not going to know who I am. He's going to shoot, no matter what," Sebije Nelovic said in a ...

“CTE is linked to repetitive brain trauma and has a distinct pathology that can only be diagnosed at autopsy,” says Dr. Ross ...

Craig Clementi, who works in the NFL's finance department, took a bullet in the back during the tragic mass shooting on ...

A former high school football player who opened fire in a Manhattan building Monday — killing four people before fatally ...

Roger Goodell also gave a health update on the league employee who was seriously injured in the gun attack that killed four ...