A 28-year-old teacher has been charged with the “senseless" killings of a couple who were hiking with their children at a popular state park in Arkansas.

A suspect has been arrested following a manhunt for the killer of a couple found dead on a walking trail at Devil’s Den State Park in Arkansas at the weekend. James Andrew McGann, a 28-year-old Springdale man, was taken into custody late Wednesday afternoon, Arkansas State Police announced.