This episode hit me hard- I don't think it was so much the way Modesto treated Andrew that was revealed- it was the (terrible) blueprint for what it meant to be a man that was modeled for Andrew. His father lied so easily, changed moods with the winds, and terrorized every one around him. Even while he was traumatized, you could see moments where he was in awe at his father. Especially that scene where he rolled the window up with his mother outside- that cruelty was straight from his father's playbook.
I agree that a crappy childhood doesn't a murderer make, but it certainly doesn't help the situation.
And as far as the order of the series- I have found myself fascinated at how the relationships began even while I knew how they ended (especially David and Jeff). I love how details come in to play much later (like the name of the homeowner, DaSilva). It definitely works for me and is an unusual approach.
