UNITEDHEALTHCARE CEO KILLING SUSPECT SPOTTED RIDING BIKE … Minutes After Shooting

Police say the suspect who killed UnitedHealthcare CEO Brian Thompson can’t hide forever in NYC … ’cause security cameras recorded a person believed to be the shooter riding away from the murder scene.

Check out the new video, obtained by ABC News, showing a person — who cops say is the suspect — riding down a Manhattan street just minutes after Thompson was shot to death early Wednesday outside a hotel.

It appears the rider’s wearing a mask, riding down the street very quickly … but, cops say this is the person they’re looking for — blending in with the rest of the concrete jungle.