Is it wrong that I want to hit a girl .?

I am a guy. I want to hit this girl named Casey Anthony. She murdered her child so that she could party. She showed no remorse and now she just keeps blaming other people, even strangers, and even her own father , when all the evidence points to her. Although it says I cant , as a guy, hit a girl, if she were at my house , id get a baseball bat and her face would be the target. Am I wrong for this? and also: what do you think would happen to her if i did this, would it be lethal head injury? would it damage her brain severly?