I wonder if we have any psychiatrists or psychologists on here who can weigh in on my guesswork: It seems to me this guy was a pampered child who could do no wrong, used to being the highschool hero, but life afterwards was not what he thought he deserved. His job was not prestigious, his social status was diminished, and he wasn't getting the hero worship from his spouse or others as he his parents and others had taught him to expect. So he had an affair(s)for the sake of his own ego. Laci became a weight that tied him down financially and otherwise, the baby would make it worse, so he removed them.
Can't wait to see the book about the real facts of this monster.
Scott also refused to be interviewed by police in the disappearance of a coed he had briefly dated at a college.
He also had some very strange item in his auto when he made a plan to secretly meet Amber. Rope, shovel, etc. He was luring her with promises of birthday presents.