They say losing a child is the worst thing a parent can endure. But for Christos and Lesli Catsouras, whose 18-year-old daughter, Nikki, was killed in a devastating car crash in 2006, there was something much, much worse. Two weeks after their daughter's death, on Halloween day, Christos got a phone call from a friend. "Have you seen the photos?" he asked, hesitantly. Nine color close-ups of Nikki's mangled remains, still strapped into her father's crushed car, had been circulating around town by e-mail. Within days, the images went viral, popping up on hundreds of sites. Now a California court has handed the family an important legal victory.Nikki's parents found out about the accident, which took place on a toll road near their Orange County, Calif., home, just moments after it happened. But they were forbidden by the coroner from identifying their daughter's body—it was simply too terrible for a parent to see. So you can imagine their horror when, a few days later, Nikki's mother ca...