One aspect of the case that is still unknown is how much CH fits the 'typical' profile of a sexual predator. From the point of view of investigators, he had an apparently good marriage and kids: IMO that, in itself, may have ruled him out as a suspect.
John Douglas from the FBI, happened to create a criminal profile of Christine's killer. Like everything else in this case, the profile became part of the whole schmozzle of trying to convict and then exonerate Morin.
But for me, there is also a more general interest in how some of these genetic research convictions may be contradicting some of the long-held beliefs of psychological profilers. For example, both CH and the golden state killer had longterm marriages and children, whereas the profiles are almost always of loners.
I don't have access to John Douglas's book "journey into darkness", where he outlines his profile. The profile is not available on any news sites, only in blogs and so forth that I don't want to quote. Does anyone have that book?