Debra Sue Moore (Jack of Clubs, Texas)

After a night out with a new love interest in May 1986, 25-year-old Debra Sue Moore was fatally stabbed steps outside her date’s apartment door. Police quickly zeroed in on her estranged husband as a suspect, but a string of attacks on several other women in the same area during the same week forced them to consider whether a serial predator could be to blame for Debra’s death.