Customer harment help!?

YES!!! In this day and age of lunatics. Print out the emails and take them to the police department. Are you certain it is him calling your home? Do you have caller I.D.? If you can't prove it is him calling the police most likely won't consider the calls to your home as part of the complaint. Good luck and be safe. Don't let this man make you paranoid just be sure to use common sense.