A suspected US bank robber has been busted by police after a series of mishaps delayed his getaway. Police managed to catch up with Robert C Williams, 42, after he stole $20,650 from a PNC Bank in Maryland, US. CCTV of the robbery shows Williams dropping the stolen cash inside the bank before hastily trying to pick it up and shove it into an upturned umbrella he found on the floor. But the calamities didn't end there, after leaving the scene, Williams drove his getaway vehicle straight over police spikes and when he tried to run, the clumsy thief slipped on ice and cut his head open. He was finally able to get away in his green minivan but not before numerous bank customers called the police. The setbacks ensured police were able to pursue and arrest him a short time later.