401082 06: A German Shepard bares its teeth during Schutzhund attack dog training at Witmer-Tyson Imports February 14, 2002 in Newark, CA. The trial of Marjorie Knoller and Robert Noel, whose two giant Presa Canario attack dogs killed 33-year-old Diane Whipple last January, is scheduled to begin on February 19, 2002 in Los Angeles. (Photo by Justin Sullivan/Getty Images)
