My policy regarding these types of threads, which we seem to get fairly often, is to not get involved. Even if the poster appears to be local, it is nearly impossible to know whether they are in DC, MD, or VA. So, I would have no idea which police department to contact. Then, all I can say is that an anonymous poster posted something that I don't know to be true. Finally, I'm not convinced that posters who are not making specific threats to harm themselves, but are essentially thinking out loud, really want the police to come busting through their doors.