A man arrested on firearms charges in Pennsylvania was later charged in New York with murder in the killing of ...

Police are on the hunt for the masked gunman who fatally shot UnitedHealthcare CEO Brian Thompson outside a New York City ...

Police in New York said Wednesday that forensic investigators were able to match the gun Luigi Mangione was carrying when he ...

Videos showed posters featuring the words: "Wanted. Denying medical care for corporate profit. Health care CEOs should not ...

Here's what we know about UnitedHealthcare CEO Brian Thompson, who was shot to death in Manhattan on Wednesday, Dec. 4.

During an extradition hearing in Blair County Courthouse in Hollidaysburg, Pa., on Tuesday, Luigi Mangione's defense attorney ...

This image provided by the New York City Police Department shows a man wanted for questioning in connection to the ...

The bullets found at the scene of the killing of UnitedHealthcare CEO Brian Thompson also match the gun seized from the ...

Luigi Mangione is being detained in Pennsylvania after being found with a gun consistent with the one used by kill ...

Luigi Mangione, the suspect in the killing of UnitedHealthcare CEO Brian Thompson, is now charged with murder in New York ...

The 26-year-old remained behind bars in Pennsylvania, where he was being held without bail after being arrested and charged ...

UnitedHealthcare CEO Brian Thompson killed outside New York City Hilton hotel in Wednesday morning ambush, masked gunman ...