Teacher Andrew James McGann is accused of killing Clinton David Brink and Cristen Amanda Brink while they were hiking in Arkansas' Devil's Den State Park.

Clinton David Brin and his wife, Cristen Amanda Brink, were "fatally attacked" while out hiking with their two daughters at Devil's Den State Park, police said.

Andrew James McGann, 28, was arrested at 4:57 p.m. local time on July 30 at a business in Springdale, Arkansas, state police said.