Brian Thompson's murderer, Luigi Mangione, has been charged with the crime, according to court records.

• Court records reveal that Luigi Mangione, an Ivy League graduate, was charged by prosecutors in New York with the murder of UnitedHealthcare CEO Brian Thompson.
• Hours after Mangione was arraigned in a Pennsylvania courtroom on gun and other charges related to his arrest earlier Monday at a McDonald's in Altoona, Pennsylvania, the charge was filed.
• Mangione is accused of shooting Thompson, the CEO, while entering an investor meeting for UnitedHealth Group, his parent company.

On Monday, Ivy League graduate Luigi Mangione was charged with the murder of UnitedHealthcare CEO Brian Thompson by New York prosecutors, according to court records.

Hours after Mangione was arraigned in a Pennsylvania courtroom on gun and other charges related to his arrest earlier Monday at a McDonald's in Altoona, Pennsylvania, the charge was filed.

On Monday night, the Manhattan District Attorney's Office charged Mangione, 26, with murder, criminal possession of a loaded firearm, possession of a silencer, and possession of a forged instrument in state court in Manhattan.

Last Wednesday morning outside the Hilton Hotel in midtown Manhattan, a man who graduated from the University of Pennsylvania was accused of fatally shooting Thompson.

A masked gunman with a pistol that appeared to have a silencer attached shot and killed Thompson, a 50-year-old father of two, while he was on his way to an investor meeting for UnitedHealth Group, which owns his company.

In the US, UnitedHealthcare is the biggest private health insurance company, generating over $200 billion in yearly income.

Earlier Monday, Thompson's family held a private funeral for him in Minnesota while Mangione was being taken into custody and questioned by Altoona police.

A backpack belonging to Mangione was discovered to contain a gun, silencer, and numerous rounds of 9mm ammunition by police after he presented them with a fake New Jersey ID that is believed to be the same one he used to check into a Manhattan hostel in late November.

A McDonald's employee alerted authorities after suspecting Mangione, who was wearing a mask while seated at a table in the restaurant.

Immediately recognizing Mangione as the person sought by New York authorities in connection with Thompson's killing, Altoona police said that they removed his mask at their request.

A man from a wealthy family in Baltimore is being held in a Pennsylvania jail without bond on charges related to the gun and fake IDs he was carrying.

In New York, police did not recognize the identity of the "person of interest" seen on surveillance images near the scene of Thompson's murder before his arrest in Altoon.

The gunman may have escaped New York after the shooting and could have left on a bus from the Port Authority terminal in Washington Heights, located in northern Manhattan.

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