The death of a local teen is still a mystery, 41 years later.
March 16, 1974, the body of 14-year-old Karen-Lee Caughlin was found in a ditch just west of Petrolia.
OPP Constable Mark Foster says a YouTube video continues to spark new information in the case.
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Police have not made any arrests in the case, but do have suspect DNA, and information about a suspect vehicle.
Police say Caughlin had been at the "Rose Garden Roller Rink" in Sarnia with friends before being dropped off at a girlfriends house on Brock St. around midnight.