What we know about Tamura’s life, how he got the assault rifle that he used to kill an NYPD officer and three others, and the ...

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

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

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

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 ...

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

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

NYPD said the gunman purchased the fully-assembled AR 15-style rifle used in the shooting from his supervisor.