I have spent the last hour or so trying to catch up on this horrible case. Those poor girls! I just can't believe gunshots were not heard since the crime scene is so close to the house. I can see a scenario where someone who knows one or the other of the girls, and who wants them dead, would be willing to become familiar with their routine, visit the area during the hours of the routine, and "surprise" the girls. At this point, I can see even a single person pulling a weapon and firing rapidly so that they were immediately incapacitated. Rapid change of weapons would allow for the secondary shots, even from the same shooter. I would be willing to bet that the leg/arm wounds were initial and the under the chin wound was delivered at close range - perhaps by the same person. If a single person committed this crime, they knew the child intimately, and they wanted at least one of them dead. What better way to make it look random than to kill a friend at the same time; and use two weapons??
