MOBILE, Ala. (WALA) – IN-DEPTH WITH SARAH WALL: A four-legged hero saving the day and finding a missing child! K-9s are an important part of not only law enforcement, but also therapy, search and rescue and even travel. We are taking a look at how this local dog found the missing little girl, what it takes to be a service or law enforcement K-9 and just how much these dogs help us every day…