The gunman in the deadly shooting at a New York City office tower had a background in casino surveillance and once held a ...

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

A gunman from Las Vegas shot five people, killing four, including an off-duty New York City police officer, inside a Manhattan skyscraper, before fatally shooting himself, officials confirmed ...

Tamura was involuntarily held after being considered a danger to himself or others, according to a law-enforcement official.

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

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

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 ...

Investigators found a note left by Midtown mass shooter Shane Tamura at his Nevada apartment saying he felt like a ...

The man who shot and killed four people at a New York office building was once arrested at a Las Vegas casino for trespassing ...

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 football, officials familiar with the investigation told NBC News.

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