# Isabelle Johnson murder investigation and arrest > Live situation record from CLSTR: https://clstr.news/situations/isabelle-johnson-murder-investigation-and-arrest > Updated: 2026-08-16T00:16:04.000Z. Sources: 7. Developments: 3. Authorities launched a multi-state manhunt for Isabelle Rose Johnson following the murder of 43-year-old Jason Christopher Coulthart. Coulthart was reported missing in May 2026 after being last seen leaving a condominium complex in Niceville, Florida. His remains were discovered in late June in a shallow grave in Freeport, Walton County, where they were wrapped in a large white zip tie, covered with concrete, and concealed by a parked black Cadillac. A DNA match confirmed the identity of the remains in July. During the 45-day search, investigators identified Johnson, 38, as a “master manipulator” who allegedly used various aliases—including “Harley” and “Jessica”—and disguises to evade capture across Florida, Alabama, and Georgia. She reportedly used false stories of domestic violence to manipulate others into providing her with money, housing, transportation, and mobile phones. Johnson was eventually arrested by the Walton County and Jackson County Sheriff’s Offices in the Florida Panhandle. In addition to her arrest, five other individuals were charged with obstruction or being accessories after the fact for allegedly aiding her flight from authorities. ## Timeline ### 2026-08-16: Isabelle Johnson arrested in Florida murder investigation Isabelle Johnson has been arrested in Florida for the murder of Jason Coulthart. After a 45-day manhunt, the suspect was apprehended following the discovery of the victim's remains in a concealed grave. 2 sources. https://clstr.news/cluster/isabelle-johnson-arrested-in-florida-murder-investigation ### 2026-08-13: Isabelle Johnson arrested in Florida murder manhunt Isabelle Rose Johnson has been arrested following a multi-state manhunt for the murder of Jason Christopher Coulthart in Walton County, Florida. 5 sources. https://clstr.news/cluster/isabelle-johnson-arrested-in-florida-murder-manhunt ### 2026-07-23: Florida fugitive Isabelle Johnson sought for murder; distinctive tattoos released Isabelle Johnson, 38, is wanted in Florida for the murder of Jason Coulthart; police released details of her rose hand tattoo, ankle tattoo and a large scorpion tattoo, raising the reward to $16,000. 3 sources. https://clstr.news/cluster/florida-fugitive-isabelle-johnson-sought-for-murder-distinctive-tattoos-released --- Cite as: Isabelle Johnson murder investigation and arrest. CLSTR, https://clstr.news/situations/isabelle-johnson-murder-investigation-and-arrest