The man who opened fire and killed four people inside a Manhattan high-rise before taking his own life had a long-documented ...

The former high school football player left a note at the scene repeatedly mentioning “CTE” — chronic traumatic ...

Police say Shane Tamura, the man who shot four people to death before ending his life on Monday, suffered from a ...

The Las Vegas police released a slew of documents related to several encounters between law enforcement and Shane Tamura in ...

Shane Tamura speculated in a suicide note that he was suffering from CTE, a degenerative brain disease associated with sports ...

Newly released police reports and body camera footage are shedding light on the troubled path that led a shooter on a ...