A 26-year-old man was identified as a person of interest in connection with thekilling of UnitedHealthcare CEO Brian Thompson.

They also recovered clothing, including a mask, consistent with those worn by the our wanted individual.

Tisch also said that officers recovered a handwritten document that speaks to both his motivation and mindset.

NEW YORK, UNITED STATES - DECEMBER 4: Police officers investigate the scene where UnitedHealthcare CEO Brian Thompson was fatally shot in Midtown Manhattan near a hotel on 54th Street between 6th and 7th Avenues on December 04, 2024 in New York, United States. UnitedHealthcare CEO Brian Thompson, 50, was fatally shot in what authorities are calling a ‘brazen, targeted attack’ outside the Hilton Hotel in Midtown Manhattan. The masked gunman, who waited several minutes before ambushing Thompson, fired multiple times, striking him in the back and right calf. Thompson was rushed to Roosevelt Hospital but succumbed to his injuries. The suspect fled the scene and remains at large. A $10,000 reward has been offered for information leading to his arrest. (Photo by Kyle Mazza/Anadolu via Getty Images)

Police officers investigate the scene where UnitedHealthcare CEO Brian Thompson was shot and killed in New York City.Kyle Mazza/Anadolu/Getty Images

Kenny offered some additional biographical details about Mangione, as well.

Mangione has no known criminal record in New York.

Mangione has not been arrested or charged yet in connection to the shooting.

He was, however, been arrested on a local firearms charge.

Images of the shooter without a face mask were captured at the hostel where he was reportedly staying.

This story was updated at 1:51 p.m.

ET after Luigi Mangione was identified as a person of interest in the shooting of death of Brian Thompson.