Teacher charged with killing of hikers at Arkansas park pleads not guilty to murder

Teacher who admitted to killing couple on a hike with their kids in Arkansas to appear in court

Teacher hired in Arkansas charged in Devil's Den park killing of couple that was hiking with kids

What to know about the fatal attack of a married couple at Devil's Den park in Arkansas

Police release picture of man wanted for questioning in investigation into Devil's Den park killings

Police search for suspect who fatally attacked couple in Arkansas' Devil’s Den State Park