Soldiers go to war knowing they can be killed. That doesn't mean when the enemy kills US soldiers, we should just shrug and say "well, they knew the risks, who cares?", does it?

Aaron did what he did knowing the consequences, my best guess is that at some point after he started regretting his decision.

So, your "guess" is as good as mine, or any of my fellow armchair analysts on HN? Are you sure Aaron even considered you a friend?

Or perhaps, you were just trolling HN, eh?

Thing is, I'm not his shrink. I don't know everything that was going on inside his head, that's my best guess based on my daily chats with him on IRC.