From what I've heard they have spotted his DNA (hair?) in her bedroom, but not her blood. If he attacked her in her room, there would be evidence of her blood in her room. But they found her blood in the motorhome, leading one to think that the attack took place after she was abducted. Did she remain unconscience after Westerfield removed her from the van Dam house? How could a child remain unconscience so long?
Did he use a chloroform cloth to render her unconsscious while still in a state of sleep? Would the odor of chloroform remain in the room? WEseterfield would have had to pocket the chloroform soaked rag while carrying out the child.
Is it possible to overdose using chloroform? Would all traces of chloroform quickly leave the body, and not be detected after a month?
If I hear anything worthwhile, I'll let you know.