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

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

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

The man who killed four people, including a New York City police officer, during a shooting inside a Manhattan skyscraper Monday once refused to leave a Las Vegas casino, leading to his arrest.

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

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

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

Former NYPD Sergeant Felipe Rodriguez weighs in on the gunman's actions and what we know about his background.

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

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

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

Witnesses to the deadly shooting at 345 Park Avenue were in disbelief when they saw gunman Shane Tamura open fire — and some ...