Lois Marie Hanna, 25, was last seen leaving a homecoming dance in Lucknow, Ontario, at about 11:45 p.m. on July 3, 1988, when she began the drive back to her home in Kincardine. Concern grew the next day when she failed to report for work; a co-worker checked her Nelson Street residence and entered through a slightly open bathroom window. Inside, the house appeared ordinary: lights and the television were on, Lois’s car was in the driveway, her purse and keys were inside, and the clothes she had worn to the dance were put away. A half-finished cup of tea sat on the kitchen counter and a peach-colored nightgown and matching robe were reported missing from the home.

Investigators found two small drops of male blood on a wall near the side door and believe Lois was likely abducted and met with foul play. The Ontario Provincial Police took over the investigation, conducted extensive searches and hundreds of interviews, and developed a DNA profile from the blood that has excluded several people but has not produced a match. The case remains open and active, with periodic public appeals and a posted reward of $50,000.

What new leads or details from that night might help break this case open?