A 21-year-old Manktato man is facing two preliminary stalking charges, after a Mankato High School student reported that her ex-boyfriend was harassing her.

Mankato Police say the victim had been trying to break off the relationship since Christmas, and last week Cody Prahl showed up at the home where the girl was working on a group project for school and accused her of dating other men.

Prahl is also accused of sending the young woman messages that included, “See you after school, you will regret this,” and changing the passwords on some of her social media accounts to monitor her activity there.

The victim is a student-athlete and her mother told officers that he also tried to blackmail her by calling the State of Minnesota High School League in an attempt to have the student taken off the hockey team.

The officer called Prahl and told him not to make any further contact with the victim, but the criminal complaint shows that a few days later a male friend of the girl was a victim of theft from his vehicle – which was parked at the high school – and a note was left on the girl’s car that read, “Call me and I will tell you where to get your stuff.”

Police say Prahl admitted to leaving the note but denied the theft of items from the pickup, and was placed under arrest for his stalking behavior.