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NewsWPLG Local 10 – EspañolAugust 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 was reported missing in May and his body was later discovered in a shallow grave in Walton County.

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Read the full story at WPLG Local 10 – Español

Why It Matters

This arrest marks a significant development in a multi-county criminal investigation involving multiple suspects charged with accessory to a .

Key Facts

  • Isabelle Johnson (38) was arrested by U.S. Marshals in Cottondale for the murder of Jason Coulthart (43).
  • Jason Coulthart went missing on May 24 in Niceville and his body was found on June 25 in a shallow grave in Walton County.
  • Bobbi Wagstaff (31) was arrested on June 26 for possession of a controlled substance and accessory after the fact.
  • Martin and Sandra Leaverton (both 63) were arrested on July 1 for accessory after the fact.
  • Michael White (74) and Kathleen Morris (59) were arrested on July 10 for obstruction and accessory after the fact.
  • 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 of the suspect”organizationWalton County Sheriff's Office“Lead agency investigating the homicide”personBobbi Wagstaff“31-year-old arrested for accessory”personIsabelle Johnson“38-year-old suspect arrested for murder”personJason Coulthart“43-year-old victim”personKathleen Morris“59-year-old arrested for accessory”personSandra Leaverton“63-year-old arrested for accessory”personMartin Leaverton“63-year-old arrested for accessory”personMichael White“74-year-old arrested for accessory”