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 Brink, 43, and Cristen Amanda Brink, 41, were found dead Saturday at the park in Washington County, police said. They were hiking with their daughters, ages 7 and 9.

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.