A Connecticut man is facing up to 16 months in federal prison after having been released for his crimes nearly 13 years ago.

CNN reports Demetrius Anderson was at home when U.S. Marshals barged in and arrested him last week, stating they had been looking for him. Anderson says he knew he hadn't committed any crimes since his 2003 arrest and was skeptical when they refused to tell him any more information. It wasn't until the 43-year-old was taken to court minutes later that he found out why: authorities claimed he had been released from jail nearly 16 months too early.

The crimes in question relate to state and federal crimes he committed in Philadelphia, Plymouth Meeting and Cherry Hill between 2001 and 2003.

Anderson reportedly attempted identity theft on a credit application to purchase a vehicle in September 2001, The Philly Inquirer reported. Police were called to the Mazda dealership when Anderson attempted to flee the scene, and he struck a police officer. He was found guilty of simple assault and received a sentence of five to 23 months in prison but did not immediately serve his time.

Two years later, in September 2003, Anderson attempted to make two separate purchases with $4,000 worth of counterfeit bills. Anderson pleaded guilty to the crimes and was sentenced to an additional 16 months in prison by U.S. District Judge Paul S. Diamond.

Anderson told CNN reporters that he believed his state and federal sentences were to be served concurrently. But in memos obtained by The Philly Inquirer, his defense attorney reportedly stated they would be consecutive.

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When Anderson was freed in 2006 and not transferred to another prison, he assumed he had completed his judicial duties. Following his release, he's kept a steady job, completed his parole and maintained a clean post-prison record.

"I certainly think it is cruel and unusual punishment," said Michael Dolan, Anderson's attorney.

Anderson was released the same day he was taken into custody, thanks to Dolan's quick work. The two have remained in conversation with public defenders to exhaust all possibilities to keep his client free.

U.S. Marshals spokesperson Robert Clark of the Eastern District of Pennsylvania told reporters that the arrest came following a "periodic" audit done in its system. The office said it is unclear why it took nearly 13 years to be discovered, but they had to arrest him to make certain he was “brought to face justice.”

Anderson says he's afraid of the possibility of being returned to prison, noting that he's been undergoing serious therapy following the murder of his parents by his brother in 2015; an incident that Anderson says haunts him.

"It's scary, I'm scared," he said. "It's bleak, it's dark; I can't imagine it. I don't think I could handle it considering what I'm going through."

Anderson and Dole are also planning to file a request to President Trump, asking him to grant a commutation to relieve him from the sentence.

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