Last week in Colorado's Buckhorn Canyon Andy and Tammie Onslow heard a terrible fracas, grabbed their guns, hurried outside, and found their dog's head it a 130-pound cougar's mouth. Andy Onslow shot the cougar, killing it. Unfortunately, he also hit their pet, Denali, who was rushed to the vet for treatment and is recovering. In the end, the Onslow's have a message for anyone living in mountain lion country: "Never leave your dog or kids unattended, ever. We're in [the cougar's] territory."