Kevin O'Connell was away on business when he got a call from a Denver animal-control officer: His dog, a Presa Canario, had mauled a Chihuahua. O'Connell, a civil engineer who lives in Thornton, had left his two dogs with a friend who lives in Denver; he gave the officer his friend's address. Then his friend called: She said that animal-control officers had shown up at her house, but instead of impounding the Presa Canario, they'd taken his other dog, Dexter, who'd been... More >>>