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

The man who opened fire at a Midtown Manhattan office building last month, killing four people and injuring another before ...

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 ...

New York City police detectives searched a studio apartment in Las Vegas that belonged to the suspected gunman in Monday's ...

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

Wearing body armor and wielding an assault-style rifle, the alleged gunman burst into a Midtown Manhattan office building ...

The evidence documents Tamura's years-long struggle with mental health before he opened fire in a Midtown office building.

Shane Devon Tamura was the 27-year-old man living in Las Vegas who fatally shot at least four people in a mass shooting at ...

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

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

New York Police have named Shane Tamura, 27, as the suspected gunman in the Monday shooting at a Midtown Manhattan office ...

Five people, including a New York City police officer, died in a shooting in Manhattan. Suspected gunman Shane Devon Tamura ...