Authorities have revealed that Shane Tamura, the man who shot four people to death at a Midtown Manhattan office building before ending his life last Monday, suffered from a sports-related concussion ...

Shane Tamura, 27, had a documented history of mental health problems and carried a handwritten note in his wallet when he ...

Rudin employee Julia Hyman was killed on the 33rd floor where Tamura shot and killed himself. A person close to Tamura's ...