tried to gather pieces to a murky puzzle. >> i think the police department was entirely overwhelmed. and they didn't know what to do. the way they were handling evidence, the way they were trying to take pictures, they have a camera guy going through there while others were picking up evidence. and anyway, it was just absolute chaos. >> the police department had only handled only one other multiple homicide in their history. so they called help. within minutes, they developed a theory that ruled out an intruder. >> there were numerous items, watches and rings, all laid out on the island in the kitchen, and nothing was taken. darley said that the assailant dropped the knife and she picked it up in the utility room which led to the garage. it was covered with blood. they found where it was laid on the carpet and on the counter in