A man stalked through a Manhattan office tower firing a rifle, killing four people, including a New York City police officer, ...

The 27-year-old man who shot and killed four people at a Midtown office building on Monday carried a note in his pocket, ...

A note found in the gunman's wallet was critical of the NFL and mentioned CTE. The 27-year-old wrote, “Study my brain please.

Two teams NYPD detectives headed to Las Vegas Tuesday, to execute search warrants at Shane Tamura's home and at a gun store ...

Instead of calling 911 to get help for himself, authorities say the NFL worker called his colleagues to alert them of the danger headed their way.

A moment of silence was held before kickoff of the annual Hall of Fame Game in Canton, Ohio, for the four people killed in a shooting Monday at the league's headquarters in New York City. One NFL ...

Police have lined up four rows deep to pay respects to a fellow officer who was among the victims of a gunman's rampage at a ...

New York’s medical examiner’s office said it will examine the shooter’s brain for CTE. Results may not be public for months.