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NewsWPLG Local 10 – Main FeedAugust 14, 2026Miami-Dade

U.S. Marshals arrest Isabelle Johnson for the murder of Jason Coulthart

U.S. Marshals arrested 38-year-old Isabelle Johnson in Cottondale, Florida, in connection with the death of Jason Coulthart. Coulthart had been missing since May 24, and his body was discovered in a shallow grave in Walton County on June 25.

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Why It Matters

This arrest marks a significant development in a multi-county criminal investigation involving multiple suspects accused of assisting in the aftermath of a homicide.

Key Facts

  • Isabelle Johnson (38) was arrested by U.S. Marshals in Cottondale for the murder of Jason Coulthart (43).
  • Jason Coulthart was reported missing on May 24 in Niceville and found in a shallow grave in Walton County on June 25.
  • Johnson is currently held in Jackson County jail pending extradition to Walton County.
  • Bobbi Wagstaff (31) was arrested June 26 for possession of a controlled substance and accessory to a capital felony.
  • Martin and Sandra Leaverton (both 63) were arrested July 1 for accessory to a capital felony.
  • Michael White (74) and Kathleen Morris (59) were arrested July 10 for obstruction and accessory to a capital felony.
  • The investigation into the motive for the murder remains ongoing.
  • Additional charges may be filed as the investigation continues.

Who's Mentioned

organizationU.S. Marshals Task Force“Executed the arrest”organizationWalton County Sheriff's Office“Lead investigative agency”personBobbi Wagstaff“Arrested for accessory and drug possession”personIsabelle Johnson“Suspect arrested for murder”personJason Coulthart“Victim of the homicide”personKathleen Morris“Arrested for obstruction and accessory”personSandra Leaverton“Arrested for accessory to capital felony”personMartin Leaverton“Arrested for accessory to capital felony”personMichael White“Arrested for obstruction and accessory”