I can tell ya one thing. Duke developed the cyanide capsule. It will give the cock your pitting the look of being hit with a heart shot on the first pitting. Seen it in action first hand. I know he played politics in the filipines and fought to keep Mike Ratliff from getting an invitation to the islands for a long time. But Mike did eventually go. But I may be wrong about this, but it was after Duke returned back to the states or somewhere close to that time..