New York City’s police commissioner says the gun found on the suspect in the killing of UnitedHealthcare’s CEO matches shell casings found at the crime scene.

The suspect in the killing of UnitedHealthcare’s CEO struggled with deputies and shouted while arriving for a court appearance in Pennsylvania a day after he was arrested at a McDonald’s and charged with murder.

Federal safety investigators say they've determined that natural gas was leaking from a defective fitting at a Pennsylvania chocolate factory where a powerful explosion killed seven people.

Federal safety officials are investigating the role of a natural gas pipeline in a fatal blast at a Pennsylvania chocolate factory.