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.

In my 27 years that I’ve been with the State Police, this is probably one of the most heinous that we’ve had, especially the aspect of just how random it was.”

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.