Actually I can see how a 10yo could lure in the victims (i don't really remember the specifics of it in the book anymore so i could be wrong with how I'm picturing it now), helping dispose of the bodies is far fetched tough I'll admit.

The serial killer in the third book has the same mo as the duct tape killer. I can't vent my frustration with that whole storyline properly without spoiling the entire book, but it gets so far fetched it made the second book look realistic