A suspected bank robber is in custody, thanks to help from witnesses and surveillance video. Police say 36-year-old Alexander Hudson robbed the PNC Bank on Blanco Road near Northwest Loop 410 on Wednesday. He walked away with the cash, went to a nearby hotel, changed clothes, and took the hotel shuttle to the airport. From there, he caught a cab to Rolling Oaks Mall, paying the fare with stolen money. Officers arrested Hudson at a restaurant, about four-hours after the robbery.