The frantic mom of mass shooter Shane Tamura had repeatedly called 911 on her mentally ill son in the years before he shot up ...

Shane Tamura, the Park Ave. gunman who killed an NYPD officer and three others before taking his own life, left behind a ...

Shane Tamura, 27, killed an NYPD officer and three other people on Monday evening when he stormed the Midtown skyscraper that ...

In a video message, Tisch said Tamura left a suicide note and claimed to be suffering from chronic traumatic encephalopathy ...

The gunman in the deadly Midtown Manhattan shooting, Shane Tamura, wrote about the brain disease CTE in a note obtained by ...

The NFL’s long history with CTE has come under new attention after Monday’s deadly shooting at the Manhattan office building ...

The crazed gunman who killed four people in Monday’s Manhattan massacre thanked a documentary on CTE brain injuries and ...

The gunman who opened fire in a Manhattan skyscraper home to the NFL's headquarters reportedly left a suicide note.

Shane Devon Tamura, identified as the shooter at NFL HQ, left a note stating he suffered from CTE and wished for his brain to ...

The alleged gunman was identified as 27-year-old Shane Tamura, of Nevada. Police said the motive for the shooting remains ...

New York City's Office of Chief Medical Examiner told USA TODAY Sports it would examine the brain of NYC shooter Shane Tamura.

The gunman, who said in a note he believed he had CTE, targeted skyscraper that houses the NFL's headquarters.