articleThe Brief The manhunt for murder suspect Isabelle Johnson continues one month after finding human remains. Florida murder suspect searchWhat we know:Walton County deputies are searching for 38-year-old Isabelle Johnson, who is wanted for murder after the remains of Jason Coulthart were discovered one month ago. The suspect has known ties to Walton and Okaloosa counties in Florida, along with several areas in Georgia and Alabama. Image 1 of 3 ▼ Isabelle Johnson (Walton County Sheriff’s Office)Unanswered questions in searchWhat we don't know:Authorities have also not revealed where Johnson was last seen or her current location. How to submit tipsWhat you can do:Anyone who knows where Johnson is located should call the Walton County Sheriff's Office at 850-892-8111.