Did Casey Anthony Get Off Because She’s Pretty?

Now that we've all had a couple of days to calm down just a bit after the stunning not guilty verdict for Casey Anthony, experts are weighing in about one reason why she wasn't convicted of killing her two year old daugther.  They're saying there is a chance she walked because she's good looking.

A couple of years ago, a woman actually used the "I'm too pretty to go to jail" defense, so the idea that someone could walk because she's too pretty isn't too farfetched.  As a matter of fact, is a proven fact that a certain percentage of defendants can expect a jury to go easier on them because they're good looking. 

Do you think Casey Anthony walked because her of good lawyering or because she's cute?