I was married to one too, he nails every characteristic of the MSM definition of a sociopath, save for the last one, and even that I couldn't put past him.
So the signs are blatantly obvious in Sini. Only a sociopath would not help, not speak with investigators, when a beloved child is missing/ dead. Only a sociopath would leave a precious child home alone, and go out to dinner, etc. ( I bet the autopsy will show sini is up to her eyeballs in Sherin's death).
I have my theories about what really happened to sweet little Sherin.
That is who this case is all about.
That's who we need to be concerned with.
Sociopathy (or antisocial personality disorder) criteria from the DSM as restated by Psychology Today
https://www.psychologytoday.com/articles/201305/how-spot-sociopath
Superficial charm and good intelligence
Absence of delusions and other signs of irrational thinking
Absence of nervousness or neurotic manifestations
Unreliability
Untruthfulness and insincerity
Lack of remorse and shame
Inadequately motivated antisocial behavior
Poor judgment and failure to learn by experience
Pathologic egocentricity and incapacity for love
General poverty in major affective reactions
Specific loss of insight
Unresponsiveness in general interpersonal relations
Fantastic and uninviting behavior with alcohol and sometimes without
Suicide threats rarely carried out
Sex life impersonal, trivial, and poorly integrated
Failure to follow any life plan
As with narcissism, we have very little knowledge by which to make a diagnosis, but I think for this one there are truly a good many contraindications. Both parents are professionals--which doesn't mean good mental health, but it does indicate that they have seen through some fairly rigorous educational requirements. They also have purchased a home in a nice neighborhood. Again doesn't make them nice people, but does give evidence to an ability to follow a life plan. First marriage for both, so far as I can tell. No one has offered any history of workplace issues, such as might be the case in someone with grandiose thinking and poor interpersonal relationships.
Sociopaths tend to rack up a list of exes (many with tales to tell). Their work history is likely to be "troubled," to say the least. They also tend to show up early life (torturing family pets, or siblings, lots of school difficulties, don't learn well from experience). The guy who shot up the Texas church had a strong look of sociopathy in the form of a list of failed relationships, a substantial history of violence, lack of remorse and a propensity to keep on doing the same things that had already gotten him in trouble.
I don't quite see that here.