Monday afternoon my wife came back from walking our Miniature Daschund, and Minature Schnauzer. She was standing in our yard both dogs on leashes when a Pit Bull came out of nowhere and attacked our dogs. The Daschund was killed, the Schnauzer seriously injured but will survive. The same dog attacked two other dogs before it was captured. My wife and I are devastated.I am a lover of all animals especially dogs. I know there are Pit Bulls that are loving and wonderfull dogs. What causes something like this? This dog lives in a townhome and inside. His owners claim he has never shown any aggressiveness toward any person or animal. The odd thing about these attacks is at no time did the Pit Bull attempt to attack a person even when I kicked it to get it to release my Daschund it went around me an attacked my Schnauzer.