OPP have launched a unique video series the force hopes will help close the books on unsolved murders and missing person cases.
The series provides a behind the scenes look at the investigations into three cases in the hopes of sparking new tips from the public.
The series follows the case of Sonia Varschin, a 42 year old woman from Orangeville murdered in her home in 2010.
The second looks into the disappearance of Melanie Ethier who went missing 23 years ago in a small northern town.
And the third, delves into the case of Kathy Wilson and the confession OPP got 39 years after the 12 year old disappeared.
The videos can be found here http://www.opp.ca/news/#/
Anyone with any information that could assist in the Sonia Varaschin or Melanie Ethier investigations can contact Criminal Investigation Services, OPP at 1-888-310-1122 or Crime Stoppers at 1-800-222-8477 (tips).