Public threats like that are illegal. Call the FBI.
They're so stupid, I doubt seriously they would even know how to find me. The road that I live on is not even named and it's not in the city/state/county directories, so they could never find me. No one can come to my house without me seeing them coming down my road. I'm very well armed, and I have intrusion alarms, so I'm not at all worried. :o)