Optimus Crime
Optimus Crime was the admin of a message board on the dark web called Hack BB where criminals would do nothing but sell hacks, discuss crime, and perfect their scamming game. You could find very in depth articals about everything from carding, fake ids, and other fraud shit to How to change your identity and disappear completely. Optimus was a regular contributor to this forum and wrote a lengthy document about "how to disappear completely."

The website was literally the best hive of criminal minds you could imagine. And Optimus Crime was the admin. A big side of the site was buying and selling cards, hacks, malware...etc.

No one suspected a thing that Optimus crime was about to rip van winkle everyone with all of the coins that were currently in escrow. Well he did, and disappeared completely and a lot of people were out of a lot of bitcoin.
Dont trust that dude Optimus Crime, he wrote 100 page pdf files on how to create, assume, and use new identities.