I know I have to walk a very tight rope here as I don't want this to turn into a religious thread but as a very spiritual man, I cannot help but be awed by what I deem to be a fact when I say when you have MILLIONS of souls on this planet aiming their positive thoughts and energy towards the healing of ONE soul, well, how that can't have an effect on some energetic level (trying to keep this non-religious) would be stretching credibility even if you pay the simplest attention to the basics of quantum physics.
In other words, we are all connected in ways we can't even fathom and the grace and goodness beyond what we could ever comprehend is at play here. Above all else, it's the fact that this event has created a sense of unified love and togetherness which is not only what that young man needed, but what we all needed.
Continued progress and healing young man.