This guy never once confided in a medical professional about what happened to him and what he was still going through. I completely understand the logic he used in avoiding them, but he could not know and never will know if he could have been helped that way.
A huge part of his pain revolved around his isolation and inability to have anyone understand what he was going through. Had he seen the right professional, he might have found himself sharing a flood of experiences and emotion that he had never been able to share before, and eventually become able to tell others "this is what happened to me, this is who I am". He could have stopped being afraid of what he is and what people would think of him, and could have found someone that could love him for who he really is (and who he really is would itself be made less cold and dark by virtue of having others understand and accept him, and tell him that he is still a person). I think the internalizing and loneliness made his trauma seem worse than it had to be.
So in this case, there was an option, and he shouldn't have committed suicide. His periphery concern about doctors blocked what would have been (if it worked) exactly what he seemed to say he needed. Unfortunately his trust issues never let him clear that one hurdle that could have turned his life in a completely different direction. Coincidentally, a lot of suicidal people express the same phobias about profession help ("i can't have someone know how truly fucked up I am"/"they could never understand")
This post-mortem grasp at making people understand him, something he was too afraid to do while alive, is all the more tragic since it shows he desperately wanted someone to understand him. On some level it feels like he may have committed suicide at this point just so that he could get these thoughts out to people without being around for whatever consequences he felt they might have.
Everything any of us has to say about this guy is pure conjecture. I have a well-reasoned opinion on why I think he shouldn't have killed myself. Consider that before you throw any of that immature, militant hate at me for not accepting his choice.