A man with a knife was shot Monday morning at the federal courthouse in Harrisburg, according to U.S. Marshals.

Authorities say a hoax active shooter call prompted a heavy law enforcement presence at Tuttle High School on Monday.

Here's what we know about a 26-year-old University of Pennsylvania graduate who's suspected in the death of UnitedHealthcare ...

The gunman who killed UnitedHealthcare CEO Brian Thompson likely fled NYC, leaving a backpack in Central Park. The FBI offers a $50,000 reward for information.

The gunman who killed the CEO of the largest U.S. health insurer likely left New York City on a bus soon after, police ...

Experts point to the killer's calm and meticulous demeanor. But indications also point to a personal motive, possibly revenge ...

Details of a deadly shooting by FBI agents of a man at a Mississippi motel remain a mystery — but now a person who claims to ...

"This defendant brazenly and wantonly killed a man and then threatened to do the same to others," the prosecutor said.

Police are searching for the gunman who killed UnitedHealthcare CEO Brian Thompson in Manhattan in an apparent targeted ...

Now, the Lincoln Police Department has upped its game with the first certified forensic video analyst in the state. Jared ...

A terrorist who was involved in the killing of six workers and a doctor at a housing camp of a private company in Jammu and Kashmir's Ganderbal was shot dead by the security forces in an encounter.