Authorities have now identified all four killed in Monday night's mass shooting inside a Midtown Manhattan skyscraper. The ...

Four people were killed on Monday when a man, identified by police as Shane Tamura, walked into the lobby of 345 Park Avenue ...

NYPD detectives searched the shooter's studio apartment in Las Vegas where they found what law enforcement sources described ...

The NYPD sent detectives to Las Vegas to work with federal law enforcement in the investigation into Monday's deadly shooting ...

(CNN) — A supervisor at the Las Vegas casino where Shane Devon Tamura worked legally purchased the gun used in the Midtown ...

Authorities say the 27-year-old man who killed four people at a Manhattan office building bought the rifle he used in the ...

Shane Tamura is suspected of killing four people before shooting himself on the 33rd floor of the building at 345 Park Avenue ...

Investigators say the suspect, armed with an M4-style rifle, may have blamed the league for head trauma he believed caused ...

A housekeeper on the 33rd floor made a split-second decision that saved her life, turning right as the Midtown gunman turned ...

A Blackstone employee who was on their way to the lobby of the building to pick up food on Monday evening fled to safety ...

After a gunman opened fire in a New York City office building and killed four people, experts expressed some concerns ...