Parents say their daughter killed herself because of online bullying-- and should be illegal.

But the St. Charles prosecutor disagrees.

Today he decided to not file criminal charges in the case of 13-year-old Megan Meier.

Megan hanged herself last October because of harassing messages on MySpace.

The prosecutor says he looked at all applicable state laws and none of them applied to this type of internet activity.

"There's no way anybody could know that talking to someone or saying that you're mean to your friends on the internet would create a substantial risk, it certainly created a potential risk and unfortunately for the meiers that potential became reality but it is under the law that we just could not show that," Prosecutor Jack Banas said today.

The messages came from a woman and her 18-year-old employee.

They made up a fake MySpace account posing as a teenage boy to get gossip from Megan.