Three words were reportedly discovered on the bullet casings found at the crime scene, police sources told ABC News ...

Police are still searching for the gunman who shot and killed UnitedHealthcare CEO Brian Thompson at 6:44 AM on December 4 ...

The 3D-printed gun that health care CEO killing suspect Luigi Mangione had when he was arrested this week in Pennsylvania ...

The words are a variation of the title of a 2010 book, “Delay, Deny, Defend,” that was critical of the insurance industry.

Police are still searching for the gunman who shot and killed UnitedHealthcare CEO Brian Thompson at 6:44 a.m. on Dec. 4 ...

Bullet casings found at the scene where UnitedHealthcare CEO Brian Thompson was fatally shot in New York City on Wednesday, ...

On Wednesday morning, an unidentified gunman shot and killed UnitedHealthcare CEO Brian Thompson outside of a hotel in ...

New York law enforcement officials also said Mangione's fingerprints and DNA matched a water bottle and protein bar wrapper discarded near the crime scene.

A gun found on Luigi Mangione matches shell casings found at the New York City crime scene where UnitedHealthcare CEO Brian Thompson was shot and killed, the NYPD’s ...