In the revelation that the shooting suspect in Midtown Manhattan was allegedly targeting the NFL headquarters, the league is ...

Here's how NFL players, coaches and executives reacted to a mass shooting at the league's office building in Manhattan: ...

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

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

Shane Tamura speculated in a suicide note that he was suffering from CTE, a degenerative brain disease associated with sports ...

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

Investigators believe Shane Tamura was trying to get up to the NFL offices after shooting several people in the lobby of the ...

The injured NFL employee in the New York City shooting has been identified as Craig Clementi, per reports. Here's the latest ...

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.

The New York City office building at 345 Park Avenue where a deadly shooting occurred serves is the headquarters of ...

The gunman who killed four people in a midtown Manhattan office building left a suicide note indicating that he was targeting ...

Shane Devon Tamura, 27, identified by the NYPD as the Midtown Manhattan office building shooter/Obtained by ABC News(NEW YORK ...