I guess everything I've read about it was inaccurate then. I had read that it was just a facebook post, like a post to his own wall. To me, it's still a fucking retarded thing to say in a public forum. Free speech is great, but your words still have consequences. Again, I don't think he should have been essentially abducted with no trial or bail.
However, I do believe that if you say "I'm going to murder children" in a public forum in a country where that exact thing happened on a disgusting level recently... you should get some counseling.