The Palmetto State Armory M4 assault rifle used in the shooting that killed an NYPD cop and three civilians is .223-caliber ...

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 left a note at the scene voicing anger that his mental illness may be linked to his having played ...

The New York City Medical Examiner determined a cause and manner of death for the gunman who killed four people inside a ...

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

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

A 27-year-old man from Las Vegas drove across the country, walked into a Manhattan office tower with an M4 rifle, ...

Shane Tamura, a 27-year-old former high school football player from Las Vegas with a documented mental health history, was ...

Authorities also found a vehicle with Nevada plates registered to Tamura at the scene, with a rifle case inside, sources said.

A suicide note blamed the NFL and possible CTE for his mental decline, though Tamura never played professionally, only in ...

Tisch said Tamura had a Nevada gun license and used an AR-15 style assault rifle. Tamura legally purchased a revolver in June using his concealed carry permit, Tisch said. CBS and CNN published a ...

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