FBI

A photo of the bank robber the FBI called the "Back Again Bandit."

With help from Phoenix police, the FBI’s Violent Crimes Task Force has arrested a man accused of robbing 22 banks in Arizona and one in Nevada over a 10-month span dating to last December.

Richard Zumbro, 44, was arrested on Monday after a robbery at a U.S. Bank location in Mesa.

Rob Scherer is with the FBI says the pattern of the robberies made it difficult to make an arrest.

“This individual hit from Tucson up to Anthem, you know within the Valley, and didn’t leave the state during one incident. So yeah, where he had some patterns, other patterns were that he didn’t have a pattern as far as locations where he was going to hit," said Scherer.

Scherer says banks inside grocery stores were frequently targeted. The suspect was nicknamed the “Back Again Bandit” because the same two banks in Phoenix and Tempe were robbed a total of five times.