Arkansas authorities say a 28-year-old schoolteacher has admitted he killed a couple who were hiking with their two young daughters at a state park.

A former Oklahoma teacher was arrested in the killings of a married couple at Devil’s Den State Park, with two school districts confirming he previously worked in their classrooms.

Andrew James McGann, 28, of Springdale, Arkansas, was charged with two counts of capital murder, police said.

Surveillance video shows Andrew James McGann's arrest at Arkansas salon during a haircut for Devil's Den State Park double murder of Clinton and Cristen Brink.

A father and mother who died on an Arkansas hiking trail were stabbed to death and a 28-year-old schoolteacher has been charged in the killings.

Arkansas State Police are holding a press conference related to the recent Devil’s Den double homicide case.

Arkansas police charged a 28-year-old schoolteacher in the killing of a married couple who were hiking with their children at Devil's Den State Park.

Arkansas State Police are holding a press conference related to the recent Devil’s Den double homicide case.

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.

Authorities on Wednesday were still hunting the suspect who murdered a married couple in front of their young daughters on an Arkansas hiking trail over the weekend.

As the search for the ‘person of interest’ connected to the deaths of a Prairie Grove couple at Devil’s Den State Park, Arkansas State Police have released a new photo.

Authorities in Arkansas are releasing more information after a couple was killed while hiking with their young children in a state park.