Susan Smith's story was implausible? You mean that a guy car jacked her kids. That's happens all of the time.
Part one: I was correct from the beginning, thus vindicating my intuition based upon facts and experience. Part two: her story was that a Black man hijacked her kids in the rural South. Men (in general) are much more likely to abandon kids than to grab someone else's problems. Neurotic women steal kids from time to time. Then there was the fact that these kidnapped kids did not appear. Lots of missing kids are really murdered by their parents. That happens all the time. When a missing child does not appear in a few days he is usually murdered and most often by the parents.
Getting back to the new story, the parents seem to be crackpots on several levels: 1) the wife going out to the bar alone; 2) the child disappearing without anyone knowing it; 3) the neighbor's child porn collection and his odd itinerary within a few days. It doesn't add up.
Major parts of the JonBenet story do not add up either.
Susan Smith's story was totally bogus from the start. Anyone who has driven the road where she said the incident happened would have know that she was lying. She had said that the stoplight was red and that she was carjacked then. The light would have only been red for her if a car were coming from her left or right and she had told the officers that there were no other cars there at the intersection. The sheriff or police chief (I forget which) let her hang herself.