Police: CEO killer likely left NYC on bus headed for Atlanta

Police officials say the gunman who killed the CEO of the largest U.S. health insurer likely left New York City on a bus soon after fleeing the scene on a bicycle and hopping in a cab. But he left something behind: a backpack that was discovered in Central Park.
NEW YORK – The gunman suspected of shooting and killing UnitedHealthcare CEO Brian Thompson left New York City after the murder on a bus headed toward Atlanta, Fox News has learned.
The suspect arrived in New York last month on a bus from Atlanta, authorities previously said.
Police say the search for the suspect has now gone nationwide and the FBI is assisting the NYPD in the manhunt for the gunman. 
Video of the gunman fleeing Wednesday’s shooting showed him riding a bicycle into Central Park and later taking a taxi to a bus terminal that offers commuter service to New Jersey and Greyhound routes to Philadelphia, Boston and Washington, D.C, according to Kenny.
Police have video of the man entering the bus station but no video of him exiting, leading them to believe he left the city, Kenny said. CNN first reported that the suspect may have escaped the city by bus.
Investigators also believe the shooter left a backpack in Central Park and were carrying out a massive sweep to find it in a vast area with lakes and ponds, meadows, playgrounds and a densely wooded section called “The Ramble.” As dusk approached Friday, small groups of officers could be seen roaming among trees across ground covered with leaves.
Video obtained by FOX 5 NY shows the moment Brian Thompson, the CEO of UnitedHealthcare, was shot and killed outside a Midtown Manhattan hotel.
Officers give chest compressions after Thompson was shot
Investigators believe the suspect may have traveled to New York last month on a bus that originated in Atlanta, according to the law enforcement official, who was not authorized to discuss details of the ongoing investigation and spoke to the AP on condition of anonymity.
Once in New York, he appeared to pay with cash in any establishment where he was captured on camera, the official said.