The man suspected of shooting UnitedHealthcare CEO Brian Thompson was arraigned on Monday, December 9, in Hollidaysburg, Pennsylvania.

Luigi Mangione is charged with five counts, according to court records: one count of forgery and one count of carrying one Firearm without a license, a misdemeanor count of tampering with records or identification, a misdemeanor count of possession of instruments of a crime and a misdemeanor count of false identification to law enforcement.

During the arraignment, the judge read the entire criminal complaint aloud, according to CNN. He was held without bail and pleaded no contest. He is scheduled to appear in court in Pennsylvania on December 23rd.

Mangione, 26, whose last known address was in Honolulu, was identified last week as a person involved in Thompson’s shooting in midtown Manhattan, NYPD Commissioner Jessica Tisch said at a Dec. 9 news conference.

Mangione was arrested on firearms charges at a McDonald’s in Altoona, Pennsylvania, on December 9 after an employee recognized him from photos that the NYPD distributed nationwide. The employee called the local police, Tisch said at the press conference.

According to the criminal complaint, Mangione allegedly gave a responding officer a New Jersey driver’s license under a false name. While the officer was “transmitting the information through the dispatch center,” another officer asked Mangione if he had been in New York recently. Mangione allegedly “went quiet and started shaking,” the complaint states.

Officials were unable to locate any information from the New Jersey license allegedly provided by Mangione. They told him he was under “official police investigation” and would be arrested if he lied about his identity. Mangione then allegedly told police he was Luigi Mangione with a birth date of May 6, 1998, the documents say. When officers asked him why he lied, Mangione allegedly said, “I clearly shouldn’t have done that.”

“Responding officers interviewed the suspect, who was acting suspiciously and carrying multiple fake IDs and a U.S. passport,” Tisch said.

He also carried a firearm and a silencer “consistent with the weapon used in the murder” as well as a manifesto against health care companies, Tisch alleged.

Police believe Mangione used a so-called “ghost gun” that he may have made from a 3D printer, NYPD Chief Joseph Kenny said at the news conference.

The criminal complaint alleges that both the pistol, which allegedly has a “metal slide and a plastic handle with a metal-threaded barrel,” and the silencer were 3D printed. The pistol contained “a loaded Glock magazine with six nine-millimeter solid metal jacket bullets,” the document states. During a search of Mangione’s backpack, police also reportedly found “a loose nine-millimeter hollow-point bullet.”

Thompson, 50, a father of two from Minnesota, was fatally shot outside New York’s Midtown Hilton Hotel on Dec. 4 in what police described as a “brazen, targeted attack.” The shooter fled the scene on an electric Citibike, which he rode to Central Park.

When he was captured on video leaving Central Park, he was still riding his bike but no longer had his backpack with him.

NYPD detectives searched the park and found the backpack, which contained a Tommy Hilfiger jacket and Monopoly money, on Saturday, December 7, NBC News, ABC News and The New York Post reported on Saturday.

The manifesto — the handwritten document that officers allegedly found on Mangione when he was arrested — “speaks to both his motivation and his mindset,” Tisch said.

Tisch did not reveal the exact content of the manifesto.

Kenny hinted at what might be involved when he said Mangione appeared to have “ill will toward corporate America.” A source told PEOPLE that it targeted the healthcare industry.

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Authorities also discovered engravings on bullet casings found at the crime scene with the words “deny,” “defend,” and “deposit.”

This is similar to the phrase “delay, deny, defend” used to describe the industry’s strategy for denying claims, which was also the title of a 2010 book by Rutgers University professor Jay Feinman.

Mangione grew up in Towson, Maryland. PEOPLE confirms that he was the high school valedictorian at Gilman School, a prestigious boys’ prep school in Baltimore. PEOPLE confirms that he holds both bachelor’s and master’s degrees from the University of Pennsylvania.

In 2016, Mangione founded Penn’s Game Research and Development Environment, a club also known as UPGRADE. The Daily Pennsylvanian Reports.

This is a current story and will continue to be updated.