Finger prints match between Luigi Mangionne and prints found at scene of CEO Killing, Source say

Police have charged 26-year-old Luigi Mangione in the deadly shooting of UnitedHealthcare CEO Brian Thompson outside of a New York City Hilton hotel earlier this month. They say a trail of evidence ties him to the crime, including the suspect’s fingerprints and handwritten notebook entries.

A person familiar with the matter told CBS News prosecutors from the Manhattan District Attorney’s office have begun presenting evidence to a New York grand jury in the case and are seeking an indictment against Mangione for Thompson’s killing. The Manhattan DA ‘s office declined to comment on the grand jury proceedings due to the confidentiality.

Mangione, a former prep school valedictorian and an Ivy League graduate from a prominent Maryland family, was arrested Monday in Altoona, Pennsylvania, and is being held without bond on charges of forgery and firearms violations. He appeared in court and contested his extradition back to New York, where he faces second-degree murder charges for Thompson’s killing.

Once Mangione is extradited, the New York City Police Department said he’s expected to be charged with premeditated first-degree murder, which is rarely filed unless an officer has been killed. The district attorney’s office has the final say on any charges.

Here is a look at the evidence authorities say they have gathered so far against Mangione.

His notebook entries
Authorities recovered a spiral notebook from Mangione when he was arrested, two law enforcement sources told CBS News. They said Mangione wrote that he considered using a bomb but decided on a shooting instead because it would be more targeted and would avoid endangering innocent people.

Mangione has not incriminated himself in statements to investigators, police said. But investigators are referring to the note as Mangione’s claim of responsibility, sources told CBS News.

Some of the notes in his notebook expressed disdain for corporate America and the health system in particular, according to the NYPD. That aligns with investigators’ working theory about the suspect’s possible motive for targeting Thompson, which is apparent animosity toward the health care industry.