As a child, Marine Staff Sergeant Ryan J. Oyster emulated his father, a Marine. Even though his biological father was in the background of his life, the adventurous youngster who had a penchant for uniforms had his sights on the military. An outdoorsman, he was an Eagle Scout, played baseball, soccer, football, wrestled and ran cross country. Then in 1998 when he was old enough to make his own life's choices, at 18 the Virginia...