Suspect’s bag contained Monopoly money: Source

A bag recovered by the NYPD that allegedly belonged to the suspect wanted in the shooting death of UnitedHealthcare CEO Brian Thompson had only two items inside: a Tommy Hilfiger jacket and Monopoly money, sources with knowledge of the ongoing investigation told ABC News Saturday.

The NYPD believes it is making progress in identifying a suspect but, as of Saturday night, no announcement has been made, sources told ABC News.

Investigators continued to search through the city for evidence and clues for the fourth day of trying to catch the unidentified fugitive. This included the use of police divers.

Police searched the lake near the Bethesda Fountain in Central Park, not far from where the suspect’s bag was found Friday night.

Police have not yet recovered the gun that was allegedly used in the shooting. It is not clear if police recovered evidence from the water.

MORE: UnitedHealthcare CEO firing suspect’s move: Timeline before, during, after firing

New York investigators and the FBI continue to track the shooter’s movements after the incident Wednesday morning and have said he left the city that day.

New York investigators arrived in Atlanta Saturday following tips about the shooter, according to reports. The Atlanta PD confirmed the arrival of the New York team but declined to provide further details.

The suspect reportedly arrived in New York on a Greyhound bus from Atlanta. Police learned that the suspect took a taxi to the Port Authority bus stop on 178th Street and boarded a bus from New York City following the shooting, according to police.

The bus, which is believed to have gone out of town, made six or seven stops, and investigators followed up on leads in several locations, the sources said.

MORE: UnitedHealthcare CEO shooting latest: Suspect left New York City on bus, police say

The killer entered New York City by bus on November 24, when surveillance cameras at the Port Authority Bus Terminal captured his arrival at around 9 p.m., law enforcement officials told ABC News.

The bus was heading into Atlanta, but it was unclear where the suspect boarded. Sources told ABC News that he was spotted on a boat in Washington, DC

The 10-day period he was in New York City before the shooting is the focus of the investigation.

The FBI is helping across the country to find the suspect, according to law enforcement, and the unidentified man remains at large after Wednesday’s attack, which police described as “brazen, targeted” and “premeditated.”

Police have not yet released the name of the suspect.

Meanwhile, referring to Thompson’s latest killing, Centene, the health insurance giant, said it will be moving its scheduled in-person investor day in New York City next week to the real one, according to the company on Friday.

“All of us at Centene are deeply saddened by the death of Brian Thompson and want to show our support to all those affected. Health insurance is a big business and a small community; many members of the CentTeam have crossed paths with Brian during their careers,” said Cetene Chief Executive Officer, Sarah M. London. “He was a person with a deep sense of compassion and a clear desire to improve access to care. Our hearts go out to his family and colleagues at this difficult time.”

MORE: Who killed UnitedHealthcare CEO Brian Thompson? What we know about the suspect on the run

A masked gunman shot Thompson at point blank range at 6:44 a.m. Wednesday outside the New York Hilton Midtown, where Thompson was attending an investor meeting in his company.

MORE: ‘Resist,’ ‘prevent’ and ‘remove’: Police are investigating the words found on CEO shooting sprees, sources say.

“The shooter then walks toward the victim and continues to shoot,” NYPD Detective Chief Joseph Kenny said. “It shows that the gun is not working properly, when he clears the jam and starts shooting again.”

Written on the wrappers were the words “refuse,” “protect” and “remove,” according to police.

The text on the billboard echoes the title of the 2010 book “Delay, Denial, Prevention: Why Insurance Companies Don’t Pay Claims and What You Can Do About It.” Police are aware of the similarities, and are investigating whether the same motive is angering the insurance industry, sources said.

MORE: The fatal shooting of UnitedHealthcare CEO Brian Thompson sparks a wake-up call for national leaders: Expert

Investigators believe they were able to take DNA samples from several pieces of evidence found at or near the crime scene, law enforcement officials told ABC News. Samples are currently at the NYC Office of the Chief Medical Examiner to be run through a database for a possible match — a process that could take several days, sources said.

Police were also able to make out a fingerprint on a water bottle the suspect bought at Starbucks, but the print was covered up so it’s not clear how useful that would be, the sources said.

UnitedHealthcare executive shooting latest: Suspect’s bag containing Monopoly money: Documents first emerge abcnews.go.com