Roky Vance(Marvel, from Punisher)

Roky Vance, a member of the Billionaire Boys' Club, was a highly talented broker for Arnold Ansen's Hanset company but used insider training to become successful. He was also a prolific serial killer, dubbed the Skid Row Slasher, but came to the attention of the Punisher. He employed the powerful Sijo Kanaka as his accomplice and bodyguard, which ultimately proved his undoing.