Man in Pennsylvania being questioned over UnitedHealthcare CEO killing: sources

Editor's note: This video above was filmed during a Dec. 4 news conference concerning the investigation into the killing of UnitedHealthcare CEO Brian Thompson.

NEW YORK (WPIX) – A man in Pennsylvania was being questioned Monday in connection with the fatal shooting of UnitedHealthcare CEO Brian Thompson, sources told Nexstar's WPIX.

The man is in Altoona, Pennsylvania, about 233 miles west of New York City, according to sources. He's believed to have a gun similar to the one used to kill Thompson in front of a Midtown hotel, sources said.

The New York City Police Department was en route to question the man, according to sources.

The development came as dogs and divers returned Monday to New York’s Central Park while the dragnet for Thompson’s killer stretched into a sixth day.

Investigators have been combing the park since the Wednesday shooting, and have been searching at least one of its ponds for three days, looking for evidence that may have been thrown into it.

Thompson was arriving at an investors meeting at the New York Hilton Midtown hotel just before 7 a.m. when he was shot in the back and leg by a masked gunman, according to the NYPD.

He was rushed to a hospital where he was pronounced dead. The suspect, who has not been identified, was waiting for Thompson to arrive at the hotel, police said.

Bullet casings found at the scene had the words “deny,” “defend,” and “depose” written on them, sources previously told WPIX.

A backpack believed to belong to the suspect was found in Central Park on Friday, but the gun used in the shooting was not in it, sources said.

The gunman arrived in New York City on a bus that originated in Atlanta, sources said. A fake New Jersey ID was used by the suspect at a hostel he stayed at before the shooting, according to sources.

The suspect was believed to have fled the city by bus after the shooting, police said.

The FBI is offering up to $50,000 for information that leads to an arrest in Thompson’s slaying. The NYPD is also offering a $10,000 reward.

Late Saturday, police released two additional photos of the suspect that appeared to be from a camera mounted inside a taxi. The first shows him outside the vehicle and the second shows him looking through the partition between the back seat and the front of the cab. In both, his face is partially obscured by a blue mask.

This is a developing story.

The Associated Press contributed to this report.