Dubbed the “bearded bandit” because of his shaggy facial hair, Gibson would present notes to tellers demanding money and made off with more than $7,600 in cash.
The first robbery in 2014 was committed hours after Gibson was released from a detetention center where he was being held on unrelated charges, the FBI said.
Gibson was sentenced to five years and eight months in federal prison for the robberies. In December 2019, he was charged with escape for failing to report back to a halfway house and the next month he was sentenced to 10 months in prison.
It wasn't known where Gibson was living at the time of his death.