Thu, 05 May 2016 05:06:03 GMTBY RYAN VAN VELZER AND PAUL DAVENPORT THE ASSOCIATED PRESSPHOENIX — In cross-country running, your team is only as fast as your slowest athlete. Slain Navy SEAL Charles Keating IV took that to heart in his youth as a track star, turning around to cheer on his teammates after he crossed the finish line. Tho...