Big Boston

Origin
Big Boston is known as the "policy king and emperor of organized crime."

He ran a numbers racket, in which his thugs killed police officers and used their badge numbers as lottery numbers, only to have his men steal the money back from the winners.

One day his men murdered officer Tim Wood. His brother Tom was devastated. Tom used a prototype helmet which he'd attemped to sale to the government and became a mysterious vigilante named Micro-Face.

Micro-Face used his voice projecting ability to cause Boston's men to fire in all directions, massacring each other. Micro-Face was about to terminate Boston, but the vary police he'd been murdering arrived, scaring off Micro-Face and saving his life (and bringing him to justice).

Public Domain Appearances
Clue Comics #1