W5 presents the inside story of how the killer of Canadian woman Sonia Herok-Stone evaded justice for 40-plus years, due to destroyed evidence, a flaky witness and a mistrial.
A cold case stretching back to 1981 left Sonia Herok-Stone’s family and police searching for answers for more than four decades. Stone’s daughter and the now-retired detective Lins Dorman never lost hope for a break in the case.