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

The gunman who killed an NYPD officer and three other people in a Midtown building on Monday evening was carrying a note that ...

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

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

Investigators found the note in the wallet of 27-year-old shooter Shane Tamura who police said opened fire inside of 345 Park ...

A suicide note blamed the NFL and possible CTE for his mental decline, though Tamura never played professionally, only in ...

Shane Tamura, 27, is the suspect alleged to have shot and killed four victims while wounding an NFL employee. Tamura then ...

Shane Devon Tamura, the man identified as the gunman who killed four people in a deadly shooting at a midtown Manhattan ...

The progressive brain disease can be caused by repeated trauma to the head and has caused serious health problems for ...

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

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

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