22-year-old Army veteran Haleigh Murphy vanished on June 16, 2023, after leaving a Round Rock, Texas bar with a male friend—her family believes a dangerous secret she kept may have led to her disappearance. Josh Mankiewicz investigates the unsolved case in this Dateline preview. Haleigh Murphy, a devoted mother to her 2-year-old son JJ and close family member, disappeared on June 16, 2023, after attending a yacht party in Texas.