The owner of a private security business on Park Avenue said he questions how a shooter got so far into a Midtown office ...

Shooter with assault rifle kills police officer and leaves six others injured in terrifying broad daylight shooting in NYC ...

A shooting Monday at an office building in New York City that is home to the Blackstone investment firm and the NFL left four ...

A lone gunman walked into a midtown Manhattan office building Monday and opened fire, killing four people, including an NYPD ...

Mayor Adams told ABC News that President Donald Trump called him and expressed his condolences and praised the NYPD's ...

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

LAS VEGAS -- The gunman who killed four people before taking his own life in a midtown Manhattan office building that houses the NFL's headquarters had for years sought medical help for frequent, ...

Barriers were erected in front of the ritzy Midtown Manhattan office building where a crazed gunman killed four people Monday ...

A gunman armed with an assault rifle shot an NYPD officer inside a Park Avenue building in Midtown Manhattan that houses ...

Business was winding down at 345 Park Avenue on Monday when a man strode across the public plaza just outside the Midtown ...

Police say the man who shot and killed four people at a New York City office building purchased the rifle from a Las Vegas ...

Shane Tamura has been identified as the gunman in the 345 Park Avenue shooting in Manhattan and has killed himself.