Dawn Bascom, I agree with you there about her being a possible victim. From what little I read, it sounds like she may have escaped and he killed her. Her stabbings, do you know if those were post-mortem? I have read that COD is strangulation, but it would lend credence to the theory he stabbed her after death because he was in a rage that she foiled his plans about being held prisoner in the cellar of an abandoned house by escaping and him "having" to kill her. I read the wounds "below the hips" as being the 1967 way of saying she was sexually mutilated. Do we know if this was true, and again..were these post-mortem?
I don't know about Coon. There were reports she called her parents twice after 3 months of being gone, and her body has never been found?