This kid with a terminal illness got to meet Rebecca Sugar, a few other members of the Crewniverse, and got to watch the Wanted special early. The kid released a few tidbits of information (likely on their G+, due to posts in the aftermath) about it, and Vox went fucking crazy.
This man, Vox, makes videos about Steven Universe leaks (2 minute previews, entire episodes, e.g. Lion 4, etc.) then denounces a child with a TERMINAL FUCKING ILLNESS for releasing the names of a few gems, according to this Twitter thread.