CNN headline: "5-year-old's beheading came 'out of the blue'"

Am I the only one that finds the headline disturbing (aside from the action itself)? My initial reaction: Well, sure, I would certainly hope so. When this kind of “stuff” does not come out of the blue, then we are all in really bad shape…

The link to the headline was on the main CNN page. The actual story is at http://www.cnn.com/2009/CRIME/03/31/sibling.stabbings/index.html

i presume the intention is to communicate that the attacker was previously believed to be normal.

You can only hope…