An uncle once commented about a cousin of ours that he demonstrated how it's possible to screw things up so badly that you can't possibly recover. I think that's true for Sam. I hope it's not true for the people in his orbit; I hope they can get out from under this and try to find meaning, ideally from repairing the harm they've done. As Rick Heicklen writes, "We are not ever going to be Sam. But we could be Caroline…
FWIW, I didn't find Lewis's book as bad (or amoral) as it's often made out to be. Yes, he didn't put his judgement in every paragraph, but his description of SBF was: a) absolutely damning! SBF's lack of empathy, his notion that (given that everyone else is stupid) he knew best and should basically ignore the advice of everyone else (particularly his elders), his naive utilitarianism without any deontological/virtue…
All this means is that crime and violence are a systemic problem. Thinking about free will as the cause of crime isn't useful compared to thinking about how we might support and treat abused children and help them take a different path.