User blog comment:Dragon´s Blade/World Coexistence Alliance/@comment-24849899-20140623213411/@comment-24849899-20140623235728

DL: Aaron has a VERY unstable brain when he was born. You see whenever he is tickled, that's a form of panic in the brain.

And his brain DEATHLY reacts to it, emmitting multiple colors at once. Then he goes through a "seizure". What happens is that once his brain malfunctions, his body literally "seizes" up and begins to twitch and foam out of his mouth.

Then his esophagus closes up violently, making it hard to breath. And when not reacting fast enough... he dies.

So in other words your tickling was a form of panic in his brain, causing him to have a seizure and well... died.