When this illegal military-run project was exposed, the test soldiers were euthanized in order to tie loose ends. Sebastian managed to evade them and moved to Gotham under a new alias.

Realizing how difficult it was to live life in the current society, he resorted to using his powers and skill to earn money via heists and robberies (for paying customers and sometimes for himself). He only became known as the Crimson Cat by Batwoman (who later discovered his real name as well).