Then buy a gun.... This really doesn't sound like it's a murder stalker deal. It's obvious the daughter is talking/ trying to reason with this guy by the amount the mom knows about him, I mean come on, the daughter broke up with him a year ago yet mom knows he has a medical exam and flight exam in a few weeks? The daughter is giving him attention, good or bad by talking to him. She should change her phone number,refuse to talk to him, tell him to stay away and call the cops if he comes around, most normal people will take the hint and move on. If he doesn't, do the restraining order. Reporting the guy to the FAA just increases the possibility of interaction with the guy, I don't get it. Mom is too involved in this, knows too much about this guy and sounds like she is looking for revenge instead of just ending contact, she needs to stay out of it and tell her daughter to grow up. Just stop talking to the guy, he'll go away.