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.

Andrew James McGann, the former North Texas elementary school teacher who is accused of murdering a couple hiking with their children at Devil’s Den State Park in Arkansas, was in the middle of a haircut when he was captured.

The teacher accused of murdering a couple as they hiked with their two young daughters at Devil’s Den State Park in Arkansas was “cold” and “disinterested” in his students before he was placed on administrative leave two years ago,