The Tumbler was once a small time crook who tried to join a local gang, but the gang’s boss considered him to be to young. A newspaper account of Captain America inspired him to hone his physical abilities in order to prove himself to the gang, as well as to seek revenge. He joined a circus as an acrobat, but also trained with the strongman for strength, and with the jugglers to learn speed and agility. When his complete, was complete, he learned that the gang had already been broken up by the police. Needing to prove himself against someone else he picked Captain America. |