He was born in Buenos Aires and educated in Geneva and Cuba. He was a daring WWII paratrooper who parachuted behind enemy lines on D-Day. He was a handsome, charming man who briefly worked as a Hollywood stuntman. He was also a spy who may have killed John F. Kennedy. The shocking new book Target JFK reveals page-after-page of incredible, never-before-reported evidence that a mysterious Argentinian with a stranger-than-fiction life story is the missing link in the assassination mystery that has puzzled America for half a century.