President Trump hailed him as a catalyst of the summit with Kim Jong-Un. But what happened to Warmbier—the American college student who was sent home brain-damaged from North Korea—is even more shocking than anyone knew.

The intertwined destinies of Siti Aisyah, a 25-year-old devout Muslim villager turned prostitute and eventual assassin, and Kim Jong-nam, who was raised as the heir to the North Korean dictatorship and died in a Malaysian airport.