If I'm not mistaken, the fracture to JB's skull was on the right side. Speculating that JB was facing her killer, wouldn't this mean that the person was left-handed? I've read a couple of the bks about the case, but I don't remember this being mentioned. Of course, if the killer was standing behind JB at the time or if JB was face-down on the floor, a right-handed killer could also strike the blow on the right side of the head. Just something I've been wondering about.