Luigi Mangione: What we know about healthcare CEO shooting suspect

Authorities have identified a "significant person of interest" in the murder of the CEO of United Healthcare in New York City, after a search that lasted almost a week.

Authorities reported on Monday that they apprehended 26-year-old Luigi Mangione on gun-related offenses after he was identified by a worker at a McDonald's in Altoona, Pennsylvania, as per officials from New York.

He had a firearm and several fake identification cards, including one from New Jersey that corresponds to the name the suspect used when he checked into a hostel in New York City prior to the shooting.

Officials reported that he possessed a three-page handwritten manifesto outlining his complaints about the US healthcare system. This document provided insight into the suspect's motivations and state of mind.

Officials intend to conduct an interview with Mr. Mangione while he remains in custody in Pennsylvania.

Mr. Mangione had a type of firearm known as a ghost gun, which is difficult to trace and can be put together at home with kits, and it is believed to have been made with a 3D printer, as reported by law enforcement. Additionally, he possessed a suppressor.

According to Joseph Kenny, the Chief of Detectives in New York, he was born and grew up in Maryland but also has connections to San Francisco, California.

According to the police, he does not have any previous arrests in New York and his last known address was in Honolulu, Hawaii.

Mr. Mangione went to a private high school for boys in Baltimore, Maryland, as noted on a LinkedIn profile that seems to be his. He graduated from the University of Pennsylvania, where he pursued a degree in computer science and started a club focused on video game development.

According to his social media profiles, he was employed as a data engineer at TrueCar, an online platform for buying and selling both new and used vehicles.

Prior to that, Mr. Mangione held a position as a programming intern at Fixarixis, a company that develops video games, as stated on his LinkedIn profile.

The BBC has reached out to TrueCar for their response.