UnitedHealthcare CEO shooting suspect, unmasked in new photos, believed to have left message on bullet casings

The suspected gunman wanted in the broad daylight slaying of UnitedHealthcare CEO Brian Thompson is seen smiling in new surveillance images released by the New York City Police Department on Thursday. 

The unknown man's face is shown for the first time in the two new images the NYPD released as the manhunt continues for a second day. 

"With these new photos, if indeed they are the shooter, it is now only a matter of time," Fox News crime analysis contributor Paul Mauro told Fox News Digital. "Facial recognition and other technologies have come a long way, and my understanding is that the police have been making progress on other fronts in this case. It is truer than ever that you can’t get away with murder these days. The detectives will get whoever is behind this, and soon."

New evidence also suggests that the suspect who killed Thompson on Wednesday may have left a message behind on the bullet casings at the scene.

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A screenshot from surveillance footage released by the NYPD shows the alleged suspect wanted for the shooting death of UnitedHealthcare CEO Brian Thompson in Midtown Manhattan on Wednesday, Dec. 4, 2024. (NYPD Crime Stoppers )

Police sources told the New York Post that the words "deny," "depose" and "defend" were written on the live rounds and casings left behind by the assassin after the shooting.

A screenshot from surveillance footage released by the NYPD shows the alleged suspect wanted for the shooting death of UnitedHealthcare CEO Brian Thompson in Midtown Manhattan on Wednesday, Dec. 4, 2024. (NYPD Crime Stoppers )

Evidence also shows that each bullet and casing had just one word written on it leading them to believe he may have been trying to leave a message, sources said. The words on the ammunition may have been a reference to strategies insurance companies use to try to avoid paying claims, the Associated Press reported.

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 Dec. 4, 2024, in New York, United States. (Photo by Kyle Mazza/Anadolu vi

In a shocking video obtained by Fox News Digital, Thompson is seen walking down a New York City sidewalk when a masked man wearing a black hooded jacket and a backpack walks up behind him and raises a handgun.

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The unknown suspect accused of the targeted killing of the CEO of UnitedHealthcare waits in line at Starbucks. (NYPD)

The culprit fired off several shots. At one point, the gun appeared to jam. The assailant then appeared to smack the gun on the side while walking toward the victim, who was attempting to get away.

Scene near the Hilton Hotel in Midtown Manhattan, NY where a man was shot to death Wednesday morning, according to police. The victim is reported to be 50 year-old, Brian Thompson, CEO of United Healthcare. (Julia Bonavita/Fox News Digital)

Following the shooting, the suspect walked between two vehicles, got onto a bike, then disappeared into Central Park, the NYPD said.

It was previously reported that the suspect used a Citi Bike – which can be tracked – but the NYPD has clarified that the incident did not involve that type of bike.

Investigators hope accompanying evidence left behind will help identify him, including a cellphone discovered in an alleyway near the hotel where the shooting occurred as well as a cup in a trash can at a nearby Starbucks. 

UnitedHealth Group released a statement expressing their condolences and surprise at the day's events.

A surveillance image released by the NYPD shows the suspect in the shooting death of United Healthcare CEO, Brian Thompson on Wednesday, December 4, 2024. (NYPD Crimestoppers)

"We are deeply saddened and shocked at the passing of our dear friend and colleague Brian Thompson, the CEO of UnitedHealthcare. Brian was a highly respected colleague and friend to all who worked with him. We are working closely with the New York Police Department and ask for your patience and understanding during this difficult time. Our hearts go out to Brian’s family and all who were close to him."

Anyone with information is encouraged to contact Crime Stoppers at 1-800-577-TIPS, or for Spanish, 1-888-57-PISTA. Tips can also be submitted on the Crime Stoppers website by visiting crimestoppers.nypdonline.com.

Fox News Digital's Greg Wehner contributed to this report.

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