I've heard the incest rumor.Families can be influenced by their environment so I waver between wanting their family heritage or hiding a more sinister thoughts of hiding family incest or something like that. Maybe Hanna had something really bad against JW or the W's that would keep custody of their little one. jmo
I had thought that the Wagner family might have known something about a gun used but didn't expect they were the killers. Reason for that being the fact that they let those babies stay with them during the investigation. Why in the heck did they do that?!