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 ...

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

Investigators found the note in the wallet of 27-year-old shooter Shane Tamura who police said opened fire inside of 345 Park ...

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 ...

Once a promising athlete, the 27-year-old faded from public view—until he showed up at 345 Park Avenue, gun in hand.

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

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

Shane Tamura, 27, is the suspect alleged to have shot and killed four victims while wounding an NFL employee. Tamura then ...

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