Justin Hartley's Colter Shaw made a rare revelation on CBS' Tracker about why he still isn't married. During the Sunday, November 9, episode of the show, Colter's next case took him to a lawless desert town in Arizona where a man went missing. Colter's investigation uncovered a hidden relationship that caused him to be stuck alone in the wilderness. He found his way back to town, which is how he started working with the chief of the police department. "No, I am not married," he explained. "I never had room for it.