Before the civil war, Andrew Ryan had sex with a prostitute named Jasmine Jolene and she became pregnant with a son. Since she needed money, she sold the embryo of her son to Fontaine. Fontaine hired scientists Yi Suchong and Brigid Tenenbaum to experiment on the child, Jack, so that he could learn and grow into a fully-capable adult in less than four years. They also programmed him to obey certain commands without him knowing it. Specifically, he would obey any command he hears if he also hears the phrase "would you kindly". Suchong and Tenenbaum also gave him false memories so that he would never learn of his true purpose, to kill Andrew Ryan.