Attention Dr. Deb!
You might want to have a quick look at this article (stupid demographics form warning - jakenapes) which has a striking resemblance to your situation.
At 12:35 a.m. Friday, the woman called Plainsboro police and said she had just been threatened by Friend through an instant message. In it, Friend threatened to harm the woman and to have her daughter raped while he watched, Kugel said. Police arrested him at 3:47 a.m.
Except, maybe this guy is a pantywaist compared to your level of abuse.
(HT: karmicommunist who should really stop feeding the daffy doctor)