How a plot to kill Kim Il Sung ended in mutiny and murder

Unit 684 was supposed to be a top-secret assassination squad tasked with attacking the residence of North Korea's then leader Kim Il Sung. But the 1968 experiment to create a crack team of would-be assassins ended in disaster.
Read more: https://www.cnn.com/2018/02/18/asia/south-korea-failed-assassination-squad-unit-684-intl/index.html?source=Snapzu