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Jury recommends death sentence for man in 2023 killing of Mo. officer

Kenneth Lee Simpson was found guilty of nine charges, including first-degree murder, in the killing of Hermann Police Detective Sergeant Mason Griffith

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FRANKLIN COUNTY, Mo. — A jury recommended the death penalty for Kenneth Lee Simpson, 38, following his conviction in the 2023 shooting death of a Hermann police officer, FOX 2 Now reported.

Simpson was found guilty of nine charges, including first-degree murder, in the killing of Detective Sergeant Mason Griffith, according to the report. On Jan. 30, jurors reached a verdict and recommended Simpson be sentenced to death.

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The shooting occurred March 12, 2023, after officers responded to reports of a disruptive individual at a convenience store in Hermann. Authorities said Simpson opened fire after officers discovered he had an outstanding warrant. Griffith was fatally shot, and Officer Adam Sullentrup was injured.

During sentencing arguments, defense attorneys cited Simpson’s struggles with depression and substance abuse and urged jurors to consider life in prison. Prosecutors argued Simpson acted knowingly and showed no remorse, stating he later bragged about the shooting.

Missouri Attorney General Catherine Hanaway said the verdict delivers accountability but not closure, acknowledging the impact on both officers’ families and the broader law enforcement community.

Simpson’s formal sentencing is scheduled for June 12.

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Joanna Putman is an Associate Editor and newswriter at Police1, where she has been covering law enforcement topics since August 2023. Based in Orlando, Florida, she holds a journalism degree from the University of Florida and spent two years working in nonprofit local newsrooms, gaining experience in community-focused reporting. Married to a law enforcement officer, she works hard to highlight the challenges and triumphs of those who serve and protect. Have a news tip? Email her at news@lexipol.com