Ceneca Johnson is no stranger to wielding fake guns in the commission of a bank robbery.

He was on parole for robbing a bank with a BB gun when he used another BB gun to hit a Davenport bank last year.

And after what happened Friday in U.S. District Court, Davenport, Johnson is no stranger to stiff penalties for his criminal behavior.

The 32-year-old Davenport man was sentenced to 21 years and 10 months in prison.

Johnson regrets pleading guilty to the federal bank robbery charge, he wrote last month to his attorney David Mullin in a letter filed in court records.

He wrote that during his robbery of Southeast National Bank, 2036 E. River Drive, on Aug. 27, 2012, he told employees "no one will be harmed" because he only displayed the pellet gun.

Police have said Johnson didn't tell the bank employees he had a fake gun when he pointed what looked like an authentic semiautomatic pistol at a bank teller and stole $19,648 before fleeing on foot.

He was found a half-hour later hiding in bushes behind the bank, police said.

He unsuccessfully tried to have his guilty plea thrown out.

Assistant U.S. Attorney Cliff Cronk has referred to Johnson in court records as an "incorrigible" bank robber and criminal who doesn't deserve leniency.

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"He has engaged in sociopathic behaviors for many years," Cronk wrote. "The court is well aware that Johnson is not treatable. There is no likelihood that he will ever conform his conduct to the law and endeavor to live a moral and law-abiding life."

Johnson robbed Metro Bank, 2533 E. 53rd St., Davenport, the morning of Nov. 10, 2004, tapping a gun on the counter and telling the teller to hurry up or he would start shooting, court records state.

Police arrested Johnson in a nearby apartment, discovering a BB gun in the toilet and a duffel bag with money in a closet, records state.

Johnson was on parole for the crime and staying at Davenport's halfway house when he committed last year's bank robbery.

He told police he walked away from the halfway house and found the pellet gun in an alley, records state.

When police asked him why he robbed the bank, he laughed and said," It's a tough economy, man," according to records.

Investigative reporter for the Quad-City Times specializing in homelessness, poverty and income inequality.