Search continues for murder weapon in UnitedHealthcare CEO shooting. Here’s what police have found so far.

NEW YORK– Into the manhunt The murder of UnitedHealthcare CEO Brian Thompson continues to expand.

Police have been Search Central Park for cluesboth on land and in the water, as U.S. Marshals try to find out where the person of interest boarded a bus to New York City.

Central Park dive teams search for murder weapon

Throughout the weekend, NYPD dive teams were seen near the iconic Bethesda Fountain in Central Park, searching for the murder weapon.

Police say the gun is critical because investigators may be able to determine where it was purchased and who it belongs to.

For now, police say the lack of concrete evidence is why they are calling the man seen on surveillance footage a “person of interest.”

Friday police discovered a backpack they believe belonged to that man. They said a jacket was found inside, but sources tell CBS News that was not the jacket worn during the shooting. Counterfeit Monopoly money was also found inside, but no weapon.

The search expands to Greyhound bus stations

Police sources say the search has expanded to Greyhound bus stations between New York and Atlanta as they try to determine where the man boarded a bus taking him into the city.

The latest photos from the NYPD show the person in question with his mask on in the back of a taxi. But the most telling photo so far is the one in which he briefly lowered his mask to talk to an employee at the Upper West Side hostel where he was staying.

New York Mayor Eric Adams sounds optimistic that an arrest will be made soon, adding that police have a name and are “tightening the net.”

The FBI distributes posters listing the man as a suspect and promising a $50,000 reward. They say he was last seen at the Port Authority bus terminal in Washington Heights 45 minutes after Thompson was killed.