Man sentenced to life in prison plus 15 years for 2018 Dexter murder

Joshua Koonce (Source: Stoddard County Prosecuting Attorney)

STODDARD COUNTY, Mo. (KBSI) – A Dexter man was sentenced to a life sentence plus 15 years Thursday for a 2018 stabbing death of a man.

Stoddard County Judge the Hon. Joe Z. Satterfield sentenced Joshua Koonce to a life sentence plus 15 years for the 2018 stabbing death of Jimmy Casey in Dexter.

The case was originally set for a week-long jury trial on November 29, 2021. However, the defendant appeared on the first morning of trial and pleaded guilty as charged to murder in the second degree and armed criminal action.

The state made no concessions for the guilty plea and did not amend any charge. Therefore, Koonce faced the full range of punishment for both counts.

After an extensive hearing that included testimony concerning Koonce’s mental health, as well as statements from the family of the victim and arguments from the state, Judge Satterfield sentenced Koonce to life in prison for the count of murder in the second degree and 15 years for the count of armed criminal action, ordering those sentences to be served consecutively.

On June 28, 2018, Koonce was charged with murder in the second degree and armed criminal action by Stoddard County Prosecuting Attorney Russ Oliver for the stabbing death of Jimmy Casey at his home in Dexter. Koonce was charged after running to the state of Colorado soon after the murder.

“We are pleased with the result of the case, given the fact that we made no concessions with regard to the charges or the sentencing range to obtain the plea of guilt and Judge Satterfield’s life sentence plus 15 years, the Defendant will no longer be a threat to our community,” said Stoddard County Prosecuting Attorney Russ Oliver. “Results like this only come from strong cases that are put together right from a team of experienced investigators and prosecutors. We had overwhelming evidence of the Defendant’s guilt and a solid basis to get all of those facts into evidence for the jury to consider. A great deal of work went into bringing this week-long case to trial. Our office would like to thank the Stoddard County Major Case Squad and specifically Dexter Police Department Chief Hank Trout and Detective Cory Mills for their extensive work with our office to prepare the case and evidence for trial. We also greatly appreciate the efforts of the Stoddard County Sheriff’s Office, the Missouri State Highway Patrol- DDCC, and each individual member of the Major Case Squad.”

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