That is my main problem with the bell graph. Like hambirg said, you need a large sample size. But there is NOT a large sample size of cases where a baby went missing from her home in the middle of the night. There may be a large sample (unfortunately) of parents of missing children, but cases are so different. I think it would be interesting to see such a thing, but this case is just so ODD. I would have to say, and no disrespect to those who really like statistical data, that this case probably is going to fall ouside that bell curve. But just because it does, that doesn't make it a FACT that the parents are responsible. It will just reinforce the opinion of those who feel that DB had something to do with Lisa's disappearance. Maybe if there was a curve that included EVIDENCE, I would trust that more than behaviors, I think.