I am so sorry WLG. I can't imagine the pain you are going through right now losing your younger sibling. It's easy to say that you can't blame yourself but as you are older one, I understand that sometimes its hard not to. With time I just hope you understand that you were just limited like every other human is, like he was in trying to deal with his pain. You cannot predict the future I hope you can forgive yourself for that because in a time like this people blame themselves for not having that ability. I wish I could reach out and give you a real hug man.
((((WLG))))