New York prosecutors Tuesday released official charging documents in the case of Luigi Mangione, the man suspected of killing UnitedHealthcare CEO Brian Thompson last week.

In the documents, Detective Yousef Demes of the Midtown North Detective Squad outlined evidence that officials say proves Mangione is the person depicted in surveillance video fatally shooting Thompson outside of a Hilton Hotel in Midtown Manhattan.

The purported evidence includes:

Hostel surveillance footage: The man depicted in the surveillance video of the shooting is the same man depicted leaving a Manhattan hostel at around 5:30 a.m. ET, about an hour before the shooting, Demes said in his report. He noted the man seen in the hostel footage is wearing the same clothing. The evidence also includes footage of the same man checking into the hostel on November 24 around 11 p.m. ET, according to Demes.

Hostel records: Business records from the hostel shows the man provided a New Jersey driver’s license with the name of Mark Rosario on it, Demes said.

Fake ID found: While being taken into custody at a Pennsylvania McDonald’s on Monday, the 26-year-old Mangione presented a forged New Jersey ID with the name Mark Rosario listed as his identification, which matched the ID the man at the hostel used, Demes said in the report.

The following charges are listed in the complaint:

Murder in the Second Degree

Criminal Possession of a Weapon in the Second Degree

Criminal Possession of a Weapon in the Second Degree

Criminal Possession of a Forged Instrument in the Second Degree

Criminal Possession of a Weapon in the Third Degree

Luigi Mangione, the 26-year-old suspected of fatally shooting top health insurance CEO Brian Thompson last week, is waking up in a maximum-security prison Tuesday morning charged with murder.

The scion of a wealthy Baltimore family who was a high school valedictorian and an Ivy League graduate, Mangione’s arrest has left many who know him in shock.

Here’s what we know:

Charges: Mangione, who was arrested at a McDonald’s in Altoona, Pennsylvania on Monday, is charged with one count of murder, two counts of second-degree criminal possession of a weapon, one count of second-degree possession of a forged document, and one count of third-degree criminal possession of a weapon, online court documents show. Mangione was found with “a black 3D-printed pistol and a black silencer,” which was also 3D printed, according to the criminal complaint. CNN is working to identify Mangione’s legal representative.

Where he is being held: Mangione is being held alone, in a single cell and at “maximum custody level,” at State Correctional Institution Huntingdon in Pennsylvania, according to a spokesperson for the Pennsylvania Department of Corrections. No incidents were reported about Mangione’s first night, the spokesperson told CNN Tuesday.

Privileged upbringing: Born into a prominent Baltimore family that built a local real estate empire — including nursing home facilities around Maryland and two country clubs in the Baltimore suburbs — Mangione graduated from the prestigious Gilman School where he was the high school valedictorian in 2016. He then attended the University of Pennsylvania, where he graduated in 2020 with a master’s and bachelor’s degree in computer science and a minor in mathematics, a university spokesperson told CNN. Mangione was a member of the Phi Kappa Psi fraternity, social media photos show. Mangione graduated from the prestigious Gilman School, an all-boys institution that is known as one of Baltimore’s toniest private schools, where he was the high school valedictorian in 2016.

Family statement: Mangione’s family released a statement Monday night through his cousin, a Maryland state delegate. “Our family is shocked and devastated by Luigi’s arrest,” Nino Mangione said in a written statement signed with the Mangione Family. “We offer prayers to the family of Brian Thompson and we ask people to pray for all involved.” The statement says the family only knows the facts of the case that have been released in the news. “We are devastated by this news,” the short statement says.

Past health struggles: Mangione suffered from troubling back pain and underwent surgery to treat it in recent years, according to a friend and online postings. Posts from a now-deleted Reddit account that does not list Mangione’s name but closely matches many of his biographical details say that the user had suffered from back aches related to spondylolisthesis since childhood but aggravated the condition after a surfing incident. The user also detailed past struggles with health issues including Lyme disease and severe brain fog and expressed frustration about how little they were understood by the medical community.

Going silent: Months before Thompson’s killing, Mangione seemingly disappeared from social media where he had maintained an active presence for years. Mangione appeared to stop posting online this summer, prompting worried messages from some of his friends. “Nobody has heard from you in months, and apparently your family is looking for you,” one user posted on X in October, tagging an account belonging to Mangione. “I don’t know if you are okay,” another posted.

Initial court appearance: Mangione did not enter a plea during his first appearance in Pennsylvania court Monday night. He will be held without bail, a judge ordered. Mangione verbally pushed back against two claims from prosecutors in court — first a claim that because Mangione was found with $8,000 in cash on him that he was trying to evade authorities. The other claim was that because he had a Faraday bag on him, which blocks cell signal — this showed evidence of criminal sophistication. Mangione said to the first claim that he did not know where the money he had on him came from, saying maybe it was planted. On the second claim, he said that the bag was waterproof, and he didn’t know about criminal sophistication.

What’s next for Mangione: Mangione’s next court appearance is set for December 23 in Pennsylvania. He is expected to be extradited back to New York.