Horton was last seen getting into a vehicle on Monday after playing with friends at Hazel Park in Golden City.
Local law enforcement partnered with federal authorities and several hundred volunteers earlier this week to search for the girl.
A man from Lamar, MO has been charged with kidnapping her. More information should be available after a news briefing scheduled for today at 1:30 P.M. in Lamar.
Authorities stress the investigation into Adriaunna's death is still ongoing, and ask anyone with information to contact the Barton County Sheriff's Department at (417) 682-5541 or the Missouri State Highway Patrol at (417) 895-6868.