>> the first two officers who arrived, i think, essentially were just shocked. one of the boys was dead, but the other was alive. damon was found near a wall, and he'd been stabbed multiple times in the back. he was barely alive, and he put down a bloody palm print to help himself up. >> when paramedics arrived, 6-year-old devon was already dead. as they tried to revive 5-year-old damon, he gasped his final breath. >> i got a phone call at 3:00 in the morning. devon and damon are dead, and darlie might be dying. and i just started screaming. >> darlie was rushed to baylor university medical in dallas and immediately taken into surgery. the necklace she was wearing at the time of the attack was so deeply imbedded in her throat it