He did help in the change in Cuba, and was the main man behind Castro, until Castro became #1, then he was a "power" problem, and sent into the Bolivian jungles, to spread his ways.... the anti forces with "support", used one of the first "Hi Tech" gizmos of the time, a heat sensing device, that could detect the temps. of the favorite cooking pot....of Che's jungle chef, which led to his capture, and execution...many years later his remains were sent back to Cuba....and Castro, made him a hero, for Castros cause. All in all a man of strong beliefs, that applied those beliefs...in his life, and was used and abused...in the name of Castro, good lesson here. He was a revolutionary not a communist, this title was applied for Castro use and gain....and now his photo, is applied for the use and gain, of the "T" shirt companies.