Salvador Diaz waited three years after his son was killed in action to introduce a special K-9 into his family. His son, Staff Sgt. Christopher Diaz, was a dog handler with the III Marine Expeditionary Force. Salvador made the decision to adopt his son's dog, Dino, who was such a large part of Christopher's life. A ceremony was arranged to retire Dino and hand the leash over to the Diaz family.