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

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

Gunman Shane Tamura had a ‘documented mental health history’ and ‘sprayed’ the Manhattan office building lobby with a ...

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

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 ...

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 ...

A gunman who killed four people at a Manhattan office building bought the rifle from his supervisor at a Las Vegas casino, ...

The brain of depraved shooter Shane Tamura could possibly be tested for chronic traumatic encephalopathy during an ...

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

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

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