For 37 years, police searched for the killer responsible for two cold cases in Toronto, but the trail went cold. Now, genetic genealogy is helping detectives map the unknown suspect’s family tree in order to solve the 1983 deaths of Erin Gilmour and Susan Tice. To read more: https://www.cbc.ca/1.5950504 #TheFifthEstate #GeneticGenealogy #ColdCase -- Subscribe for more videos from The Fifth Estate: http://bit.ly/25W8cpn Connect with The Fifth Estate online: Website : http://bit.ly/1d0FBxq Facebook : http://bit.ly/1UO9B8S Twitter : http://bit.ly/237VM8P Instagram : http://bit.ly/25W8SLs About The Fifth Estate: For four decades The Fifth Estate has been Canada's premier investigative documentary program. Hosts Bob McKeown, Gillian Findlay and Mark Kelley continue a tradition of provocative and fearless journalism. The Fifth Estate brings in-depth investigations that matter to Canadians — delivering a dazzling parade of political leaders, controversial characters and ordinary people whose lives were touched by triumph or tragedy.