ST. CHARLES, Mo. - No criminal charges will be filed against people who sent cruel Internet messages to a 13-year-old girl before she committed suicide, the St. Charles County prosecutor said Monday.

The parents of Megan Meier of Dardenne Prairie, who hanged herself last year, said her suicide came minutes after she received mean messages through the social networking site MySpace.

County Prosecutor Jack Banas said at a news conference there was no applicable statue to file charges in the case. Banas said he looked at laws related to stalking, harassment and child endangerment, but found no repeated incidents of threats to someone's life or health, and no organized conspiracy.

A police report said that a mother from the neighborhood and her 18-year-old employee fabricated a profile for a teenage boy online who pretended to be interested in Megan before he began bullying her. The police report indicates others gained access to the profile, and it is not clear who was sending Meier messages just before her death.

Banas said based on additional interviews, the fake MySpace page was not created by the mother of one of Megan's friends. He said the page was created by the 18-year-old employee, though the mother and her 13-year-old daughter knew about the page. He said he was unable to speak directly with the 18-year-old, whom he said has been hospitalized for psychiatric treatment.

After the case became public, Missouri Gov. Matt Blunt asked lawmakers to review state law to see if changes were necessary to better deal with cases that involve Internet bullying. Some municipalities have also considered or passed statutes to strengthen laws that deal with Internet harassement.