Authorities say the man who killed four people at a Manhattan office building bought the rifle he used in the attack and the ...

The NYC office shooting gunman still maintained an active concealed-carry permit in Nevada​, despite altercations with police ...

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

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

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

Police have identified the gunman as Shane Tamura, a 27-year old former high school football player, who authorities say drove from his home in Las Vegas to Manhattan because he believed he had a ...

The degree of damage on the upper floor, where only one person was killed, shows how the sunglasses-sporting killer was ...

Gunman Shane Tamura fired nearly 50 shots Monday during his rampage on a Park Avenue skyscraper, where he killed an NYPD ...

The gunman who killed an NYPD officer and three other people in a Midtown building on Monday evening was carrying a note that ...

Officials said the gunman fatally shot himself after his attack, which set off a chaotic scene that rippled out into the ...