The New York Police Department on Saturday released two new photos of a person wanted in the murder of UnitedHealthcare CEO Brian Thompson.
The photos are the latest in a series by the NYPD of the same individual wanted for questioning in Wednesday's murder.
The person in one of the photos can be seen through the partition of what appears to be a New York City taxi, wearing a blue medical mask and a black hoodie.
A person of interest wanted for questioning in the shooting of UnitedHealthcare CEO Brian Thompson appears in new images released Saturday by New York City police.
New York Police Department / New York Police Department
The other photo, taken from inside a car, shows the man outside the window walking next to the vehicle while wearing the same blue mask and a dark-colored puffer jacket with the hood pulled over his head.
The NYPD has said investigators have been able to track some of his taxi movements.
An interested person wanted for questioning in the shooting of UnitedHealthcare CEO Brian Thompson is seen walking in a new image released Saturday by New York City police.
New York City Police Department / New York City Police Department
As the investigation into Thompson's murder and the search for the gunman progressed Saturday, three sources familiar with the investigation told NBC News there was still no identification of the person of interest.
The FBI, Crime Stoppers and the NYPD are offering a combined $60,000 reward for information leading to the arrest of the gunman.
Thompson was shot and killed outside New York's Hilton Midtown hotel as he headed to the UnitedHealth Group investor conference Wednesday morning, officials said.
Thompson was shot at least once in the back and another in the right calf. He was not traveling safely.
“Based on the evidence we have so far, it appears that the victim was specifically targeted,” Joseph Kenny, chief of detectives for the NYPD, said earlier this week. “But right now we don't know why.”
New York Police Commissioner Jessica Tisch said Wednesday that this was a “premeditated and pre-planned targeted attack.”
Shell casings found at the scene had the words “deny,” “delay” and “depose” written on them, police said.
Police also found a gray backpack in Central Park that the person of interest was said to have been carrying at the time of the murder. Officials were investigating whether it was actually the same bag, two senior law enforcement officials told NBC News.
Police found a cellphone near the scene and investigators are trying to use it to learn more about the man's contacts and movements, two sources familiar with the investigation said.
Four sources familiar with the investigation told NBC News on Saturday that no weapon was found in the backpack. Three sources said there was a jacket in the bag, but it is unclear if it is the jacket the gunman was wearing at the time of the shooting.
Authorities believe the man wanted in connection with the murder may have left the state.
Kenny told reporters that the video shows the man riding a bicycle in Central Park and then taking a taxi to the Port Authority bus station near the George Washington Bridge.
Investigators are seeking additional video to determine if he boarded a bus from there and, if so, which one.
Police believe he may have traveled to New York City from Atlanta last month on a Greyhound bus, three senior law enforcement officials familiar with the case told NBC News. The bus arrived in New York on Nov. 24, after making several stops along the way, they said.
New York officials are investigating whether they can find a name used for the Nov. 24 trip, and both Atlanta police and Greyhound are assisting in the investigation.
While in New York, the man stayed at a shelter on Manhattan's Upper West Side, the NYPD said in a briefing on Friday. Authorities are working to determine whether he paid cash and used fake identification to rent a room there.
Roommates at the shelter said he kept his mask on the entire time, even while eating, and only pulled it down to take a bite, the NYPD said.
Thompson's wife, Paulette Thompson, told NBC News on Wednesday that her husband had been receiving threats, but their nature was unclear.
“There were some threats,” he said. “Basically, I don't know, lack of coverage? I don't know the details. I just know that he said there were some people who had been threatening him.”
