The man charged in the killing of UnitedHealthcare CEO Brian Thompson was critical of U.S. health care. Experts say the system's problems are complex and can't be pinned on one player or industry.
Mangione was arraigned on firearms and forgery charges in Pennsylvania after his arrest Monday evening, and is expected to face charges in New York as well.
The public is racing to find evidence that might lead to the gunman who killed health insurance CEO Brian Thompson. When does crowdsourcing detective work help police, and when can it cause harm?
Key pieces of evidence include the shooter's electric bike, bullet casings found at the scene and the hostel where the suspect reportedly stayed. Police are also analyzing a phone found in an alley.