James Wayne Ham, 37, was taken into custody on an outstanding warrant for assault.
Marie Youngblood's remains were found inside her burned vehicle on Friday.
Investigators say Ham lives on Youngblood's mail route and lives near where Youngblood's burning vehicle was found. His home was surrounded with crime scene tape yesterday.
We are gathering more information and will update you on Eyewitness News and abc13.com as additional details become available.