Christopher Carlson forced his grandsons to hike the Grand Canyon from sunrise to sunset with no food or water. The three boys ages 12,9 and 8 had cracked lips, blistered feet and could barely walk. If the boys stopped Carlson would punch, kick, and even choke them. Carlson made his grandchildren hike nearly 20 miles on a 108 degree day. When one boy could not physically continue Carlson smashed his face into a rock.