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Murder Trial Begins for Former Deputy Charged in Sonya Massey’s Killing

Sean Grayson faces multiple charges including first-degree murder in the fatal July 2024 shooting of Sonya Massey, whose family received a $10 million settlement.

  • Jury selection opened Monday in Peoria for Sean Grayson, a former Sangamon County deputy, who faces trial for the 2024 killing of Sonya Massey.
  • After Massey called about a prowler at her Springfield home, two deputies responded, and she was fatally shot; her family said Massey suffered mental health issues sparking a national firestorm.
  • Grayson shot Massey three times, saying he feared bodily harm; almost two weeks later, he was fired, charged with three counts of first-degree murder, aggravated battery, and official misconduct, and pleaded not guilty.
  • Outside the courthouse, a rally formed Monday with protesters chanting `Prosecute the police` and Keri Hayes of the ACLU in Peoria was among those calling for justice.
  • The case later prompted Illinois to pass the Sonya Massey Act, signed by Illinois Gov. JB Pritzker in August, tightening officer vetting after concerns about Grayson's record, including two DUIs and a U.S. Army discharge.
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KSDK broke the news in St. Louis, United States on Monday, October 20, 2025.
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