The backpack recovered by the NYPD that allegedly belonged to the suspect wanted in the shooting of UnitedHealthcare CEO Brian Thompson, only had 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 good progress toward identifying the suspect but, as of Saturday evening, no identification has been made, sources told ABC News.

Investigators continued to comb through the city for evidence and clues for a fourth day to try and catch the unidentified fugitive. That included the use of police divers.