Jack comforting Sergeant Buck Zimmer as he dies. The man is bleeding out in Ryan's arms and his final moments are heartbreaking while says that his family needs him to survive. Jack, being a former Marine officer and all around decent man, promises to watch over Zimmer's family and ensure they are cared for. True to his word, after the whole Colombian debacle is over, Jack not only sets up a trust for the Zimmer children to go to college, but also becomes something of a father figure to them. He remains a guardian for them even after becoming President.