At least four people, including an off-duty NYPD officer, were shot and killed in Midtown Manhattan in New York City on ...

The gunman who opened fire at a Manhattan office building Monday, killing four people before taking his own life, legally ...

Authorities confiscated several items from a Las Vegas apartment tied to a gunman who used an AR-15-style rifle to kill four ...

A man exited a double parked BMW with an M4 rifle and then walked toward the skyscraper that is home to the headquarters of ...

The gunman in the deadly shooting at a New York City office tower had a background in casino surveillance and once held a ...

A gunman from Las Vegas shot five people, killing four, including an off-duty New York City police officer, inside a Manhattan skyscraper, before fatally shooting himself, officials confirmed ...

Officer Didarul Islam, 36, who was guarding the building on a paid security job when he was killed, had served as a police ...

Shane Tamura fatally shot two security guards and two civilians, injuring another, before killing himself at a Midtown office ...

The attorney for the man who sold what would become the deadly weapon in a mass shooting in New York City earlier this week ...

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

New York City investigators believe a co-worker of the Las Vegas man who killed four, including a police officer, provided a ...

USA Today is asking readers to vote for the best casino outside Las Vegas, and one Western New York spot made the top 20.