Shane Tamura, 27, who fatally shot four people in the building that houses the National Football League's headquarters Monday ...

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

Shane Tamura, the gunman who killed an NYPD officer and three civilians before taking his own life inside a Midtown Manhattan ...

The gunman suspected of targeting the National Football League headquarters in New York, killing four, was a former football ...

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 ...

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

What to know about NYC gunman's football connection, which he mentioned in a note left behind after a deadly shooting where ...

The gunman in the deadly Midtown Manhattan shooting, Shane Tamura, wrote about the brain disease CTE in a note obtained by ...

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

The 27-year-old Nevada man opened fire at a New York City office building, killing at least four people and then himself.

The gunman suspected of targeting the National Football League headquarters in New York, killing four, was a former standout ...

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