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

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

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

Shane Tamura is suspected of shooting four people in Midtown Manhattan, where the NFL offices are. A note he left references the NFL and CTE.

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

Tamura expressed frustration with NFL's handling of CTE and had history of depression, headaches before killing four people ...

Park Ave. gunman Shane Tamura, who killed an NYPD cop and three civilians before taking his own life inside a Midtown ...

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

The 27-year-old Nevada man left a note at the scene voicing anger that his mental illness may be linked to his having played ...

A lone gunman walked into a midtown Manhattan office building Monday and opened fire, killing four people, including an NYPD ...

What we know about Tamura’s life, how he got the assault rifle that he used to kill an NYPD officer and three others, and the timeline of the shooting, which ended with Tamura firing a fatal ...

A trove of new documents and 911 calls give insight into Shane Tamura's mental health before he shot and killed four people ...