Sergeant Mark Tappan shares a special bond with his K9 partner Mattis, one of the most decorated police K9s of all time. He knows that true success is built on relationships--with friends and family, the communities we're in, and the dogs beside us. He learned his canine-training skills from his father, who trained Labrador retrievers. Mark often talks about how his determination and competitive drive set him up well for his careers as a marine, a youth pastor, and now a sergeant in the Alpharetta Police Department. While Mark has trained many dogs in his tenure as an officer, he believes Mattis is the best.