More than a decade before he turned a Midtown NYC office building into a killing ground, Shane Tamura stood out as a rising ...

LAS VEGAS -- The gunman who killed four people before taking his own life in a midtown Manhattan office building that houses the NFL's headquarters had for years sought medical help for frequent, ...

During evening rush hour in New York City on Monday, a man calmly walked into a Park Avenue office building lobby and killed ...

CTE is a progressive, degenerative brain condition linked to repeated head trauma, especially in contact sports and military ...

Officer Didarul Islam, 36, who was guarding the building on a paid security job when he was killed, had served as a police ...

The sons of the NYPD officer killed in the Park Avenue mass shooting idolized their dad, showing him off to classmates and ...

The man who shot four people dead with an assault-style rifle inside a Midtown Manhattan skyscraper was carrying a "suicide ...

A 2017 study found that more than 87% of football players tested across all levels — high school, college, and pros — tested ...

Shane Tamura, 27, used a rifle identified as an M-4 during the attack at 345 Park Avenue on Monday, police said.