It’s half-way down the page on HotAir- the post starts with:
For what its worth, a post from a YouTube video
http://hotair.com/headlines/archives/2012/07/20/14-dead-in-colorado-theater-shooting/comment-page-1/#comments
I’m guessing it’s a 4chan troll blaming it on 9gag with a random id. I searched JamesHolmes154 and nothing.