Authorities say a man who held up a Denver bank got a cab ride to and from the robbery. The Denver Post reports the FBI is asking for the public's help to find the suspect. Authorities say the man took a cab to the bank, asked the driver to idle while he went inside, and then had the cabbie drive him to Denver International Airport. Officials say it's unknown if the suspect actually boarded a plane after going to the airport, the AP reports. Video from inside the cab clearly shows the man's face, and pictures taken in the Public Service Credit Union show the man wearing what appears to be a white dust mask while inside the bank, where he threatened a teller with a small handgun. (More weird crimes stories.)