[jfengel]

There is zero chance of the police doing anything. The harassers are almost certainly not in their jurisdiction.

It's the FBI's jurisdiction, and they're not going to do anything, either. To them, it's just another of the billions of death threats sent every day. Don't call them about it until you're already dead.

It would be great if somebody, occasionally, decided to follow up on one of these felonies. Maybe people would think twice about it. But as it is, going to police is exactly as effective as complaining about it on the Internet: not at all.