The OPP are still holding out hope the death of 14-year-old Karen Lee Ann Caughlin, 47 years ago, will be solved.
Police say a seven minute case chronology video has been viewed more than 29,000 times since 2014, and a $50,000 reward for information remains in effect.
The Sarnia girl was last seen alive in the early morning hours of March 16, 1974 after being at the Rose Gardens roller skating rink the night before.
She was dropped off at a girlfriend’s house on Brock St. in Sarnia around 12:50 a.m., but never made it inside.
Her body was discovered at mid-morning near the side of Plowing Match Road, between Churchill Line and LaSalle Line. Science-based information released by police in 2017 indicated that Karen's injuries were consistent with being hit by a vehicle.
Police want to hear from, or about, anyone who may have discussed attending or hosting a social gathering in Petrolia after going to the Rose Gardens roller skating rink, the day before Karen was last seen alive.
The OPP also wants to hear from anyone with information about a motor vehicle collision in the Petrolia area, or damage sustained by a motor vehicle around that time.
Anyone with information should call Lambton OPP at 519-882-1011 or Sarnia-Lambton Crime Stoppers at 1-800-222-8477.