AceShowbiz - Luigi Mangione, a 26-year-old computer science graduate from the University of Pennsylvania, was reported missing by his mother in November. Prior to his disappearance, Mangione had cut off contact with family and friends.

Mangione was identified as a person of interest in the fatal shooting of Thompson, a healthcare executive, on December 4. On Monday, December 9, he was arrested at a McDonald's in Altoona, Pennsylvania, after being recognized from photos released by the New York City Police Department.

According to court documents, Mangione was charged with murder, criminal possession of a weapon and forgery. A handwritten note found on him allegedly included a claim of responsibility, expressing grievances against UnitedHealthcare and corporations.

Mangione graduated from the Gilman School in Baltimore as valedictorian and was a member of the robotics team. Friends and former classmates describe him as a "nice guy" and "smart." However, his social media presence indicated a lapse in communication in the months leading up to his arrest.

Mangione has ties to a prominent Maryland family involved in country clubs, health care facilities and real estate. His cousin Nino Mangione is an elected member of the Maryland House of Delegates.

The arrest has shocked the Maryland community and raised concerns among intelligence officers about the potential inspiration for extremists. Governor Josh Shapiro has condemned the murder and violence surrounding the case.

Mangione is currently being held without bail and is contesting extradition. His defense attorney has stated that he will plead not guilty to all charges. The extradition process is expected to take 30 days.