The gunman who killed four people, including a New York City police officer, during a shooting Monday inside a Manhattan ...

On Monday night, police said he entered the skyscraper at 345 Park Avenue in Midtown Manhattan and immediately opened fire in ...

His AR-15 assault rifle, which he bought from a co-worker for $1,400, had a full clip of 15 bullets, police said.

The man who killed four people at a Manhattan office building bought his AR-15-style rifle and getaway car from his Las Vegas ...

Shane Tamura, a 27-year-old former high school athlete, has become the subject of a national homicide investigation following ...

Exclusive video shows SWAT teams executing a search warrant at the Las Vegas apartment of Shane Tamura, the man behind Monday ...

There were 23 shell casings and 13 bullet fragments recovered from the lobby of 345 Park Avenue and 24 spent shell casings on ...

The assault rifle used in mass shooter Shane Tamura’s deadly rampage at a NYC skyscraper was assembled piece by piece – with ...

The alleged gunman at a shooting rampage in a midtown Manhattan office building was identified as 27-year-old Shane Tamura, ...

A Las Vegas man, Shane Tamura, opened fire in a Midtown Manhattan office tower, killing four people before ending his own ...

Midtown Manhattan faced a shocking incident. A gunman opened fire at 345 Park Avenue. Four people died, including an off-duty ...

Investigators found also found 800 rounds and a 357-caliber handgun in a BMW the shooter drove to the scene, the NYPD said.