Presa Canario - San Francisco, January 2001 - Neighbors heard Diane Whipple screaming as one of the dogs, a 54-kilogram (120-pound) male Presa Canario mix named Bane, attacked her. The second dog, Hera, a slightly smaller female dog of the same mixed breed, joined in. When police arrived at the scene, they found shreds of clothing strewn along the hallway, bloody handprints on the walls, and Whipple lying on the blood-soaked floor. The sight was so horrific that rescue workers later needed trauma counseling.