I also thing that Henry is the mysterious child. According to dates shown in episodes of HI, Henry would be a year or two older than Abby (he was born in 81 via an article in 1991 saying he was 10 years old at the time) and according to the notes for the psychic, Abby was born in 83. Everyone else still alive on the show was born after, too close to, or way before Abby. If she is the mysterious child, then thats kind of lame b/c most of the planned deaths appear to be related to the Wellingtons and she has nothing to do with them. I thought for a while that maybe Shae was the child, but she was born in 74, and that would just be an odd twist to be that much older then Abby . But, it would be a good twist if Madison ended up being JWs grand-daughter and would clear up some of her wierdness. I'm not sure how this relates to the killings, b/c if DW and the HI killer are the same person, then only Henry can be the killer (and makes no sense why he would have tried to kill Trish twice now). It looks like the DW uploaded vids are all from a college experience, and Shane and Jimmy never mention college (and appear to just be local fishermen who never left) so the only man left alive in the correct age range is Henry. Every other male (Henry's groomsmen) has been accounted for during one of the HI murders.