thanks for the thoughts...AOL is absolutely no help, nor AIM, where the email came from.
It's amazing that someone can threaten and send hate mail and all you can do is block them.

Most email providers are good about dealing with misuse. However it is easy to forge the addresses on an email and there isn't much that can be done in those cases.

If serious threats are being made rather than just childish abuse then you would be advised to seek legal advice locally.