This week, Ben chronicles the life of the deadliest man alive: John Keehan, aka Count Dante. Founder of the Black Dragons school of karate, and inventor of the Poison Hands technique, Count Dante was a man perhaps two decades ahead of his time. Loved by some, hated by many, he was the perfect heel, and both the pride and shame of Chicago. 

Sources:

The Life and Death of the Deadliest Man Alive - Chicago Reader

Count Dante - Wikipedia