Washington (CNN) An associate of Roger Stone on Monday defended the Justice Department prosecutors who quit Stone's case last week after top officials at the department retracted their sentencing recommendation of seven to nine years in prison for the former informal adviser to President Donald Trump.

"I know these prosecutors, I've been around them maybe 100 hours over the last year and they're good guys. They're decent guys, they're hard working guys, they're civil servants," Randy Credico, who testified against Stone last year, told CNN's Kate Bolduan on "At This Hour."

Credico, a comedian and radio host who was a longtime Stone associate, had testified against Stone at trial and a jury convicted Stone for threatening Credico in an attempt to keep him from speaking to Congress. But since the trial, Credico has come out in support of Stone, writing a letter to the judge in the case that Stone doesn't deserve prison time and that he didn't feel threatened by Stone, even though the former Trump adviser used violent language with him.

Last week, all four federal prosecutors who took the case against Stone withdrew in response to the controversial and politically charged decision by Attorney General William Barr to reduce prosecutors' recommended sentence, which came hours after Trump criticized it on Twitter. Stone was convicted on seven charges last year that came out of former special counsel Robert Mueller's investigation, including lying to Congress and witness tampering.

Credico's testimony and subsequent letter to the judge puts him in the middle of the two sentencing memos from the Justice Department.

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