Long before he became a Marine, Devon's first love was dogs. "He used to cut out pictures of dogs and put them in the bathroom or in drawers, so every time his mother opened up a drawer there was a dog," Jim Seymour said of his then 5-year-old son. It wasn't long before the family got him a poodle-terrier mix that looked just like the cut-outs he had made. "He was taking swimming lessons with his sister at the YMCA.