Don Steven McDougal, 42, is suspected in the death of 11-year-old Audrii Cunningham. Audrii went missing from her neighborhood in Livingston, Texas, and was found dead in the Trinity River. McDougal is currently in Polk County Jail, kept in a single cell for safety. Don Steven McDougal, aged 42, is suspected of being involved in the death of 11-year-old Audrii