Austin Sigg is an anomaly.
I do not agree with this expert, that broken families, criminal parents and being bullied caused this to do what he did.
Sigg's drive was not a learned behavior. No way can anyone convince me of that.
I agree. divorce, arrest, alcohol do not automatically result in creating serial killers. (which is what AS would be if not caught).
BUT, early exposure to abuse, or witnessing abuse, or even shaming during potty training along with the other host of issues, and the onset of puberty and no healthy outlets can certainly create some problems.