KSDK -- The "Granddad Bandit" suspected of hitting a Regions Bank in St. Louis will be featured on a billboard in St. Louis.
The FBI announced Tuesday morning that agents believe the man robbed the Regions Bank on South Lindbergh in St. Louis County on May18.
That was the 21st bank robbery he was suspected of committing.
The FBI says the first robbery happened in Mobile, Alabama in January of 2009. Other cities include: Houston, Atlanta, Syracuse, Tallahassee, Fort Smith, Knoxville and Tulsa.
Authorities describe the "Granddad Bandit" as a Caucasian man, between 50 and 60 years of age, standing approximately six feet tall, and weighing anywhere from 210 to 230 pounds.
Missouri is the 12th state to put the "Granddad Bandit" on a billboard. It's located on Interstate 70 one mile west of Lindbergh.
The FBI has been using electronic billboards since 2007, which has led to 35 cases being solved.
The FBI is offering a reward up to a $10,000 reward for information leading to an arrest and conviction. CrimeStoppers routinely offers up to $1,000 for information leading to an arrest, but tips must be submitted directly to CrimeStoppers in order to claim the reward.