My parents received an an email with a new and more direct twist on extortion about year ago.
The sender stated that someone had paid him $9000 to kill one of them, but if they would send
him $10000 he'd call it all off.
GAME ON!
I traced the IP and sent him a reply of my own including his physical address, phone number and
a map to his house. For whatever reason he did not reply to my email. ???
6 hours later I sent another email asking why I had not received a reply.
It came back immediately saying that that email address was no longer valid.
Perhaps they had forgotten to pay their ISP bill that month?
Rick