Hey, we're both night owls!
Well, listen, one can try to take apart one aspect of any point or argument made to try to deconstruct that point or argument. But that does not mean the point or argument is not valid. The people I mentioned above had plenty of victims who are still alive (the family of the person killed). They were all fooled as well.
There are tons of stories out there of people who talk about learning their spouse had lead a double life, was married to another person in a different state at the same time and the spouse had no clue, etc.
There are also plenty of women criminals who hide their true natures fairly well. Everyone thought Susan Smith was an excellent mother. Most people interviewed said the same about casey anthony. She was a great mom, loved her kid, never hit, very attentive. The fact is, some of these criminals have personality disorders that allow them to manipulate those around them to make everyone think they are normal and good. Some of them actually were normal and good and just snapped all of a sudden due to psychological issues.
But I do think there are usually signs. I think even the most polished sociopath gives off signals to others that there is something not quite right.
Yet, some people are not good at reading those signals, or ignore them, not trusting their own judgment, or they're in denial out of desperation to make the relationship work. This is true with women who feel they must be married to be normal, for example, or people who already have one failed marriage behind their belts and can't face another. This could also be the case with people who are very busy and stressed or people who aren't very in touch with emotions to begin with.
Finally, we don't know that TH has gone all these years without serious red flags. It appears there were some signs, though. Like treatment for some mental issues after Baby K was born, changes in personality, appearance, etc. It is often only in hindsight that people see what they didn't before. I bet Kyron's parents are seeing a lot of things they never considered prior to this tragedy.
