A scientific breakthrough helped catch a notorious American serial killer. Could that same technology be used to catch Susan Tice and Erin Gilmour’s killer? It helps but the Toronto Police are looking for a needle in a haystack. As they get closer, a shocking turn of events upends their plan. The following episode discusses sexual assault and murder. If you’re impacted by any of our themes, you can reach out to the Canadian Association of Sexual Assault Centres at casac.ca to help you find a centre close to where you live. Toronto Star subscribers will also get exclusive early access to all episodes on June 17. Non subscribers will get new episodes each Monday. If you are not a Star subscriber, please visit thestar.com/subscribe. Suspicion seasons 1 and 2, ”Death in a Small Town” and “The Billionaire Murders: The hunt for the killers of Honey and Barry Sherman,” were hosted by Kevin Donovan and are available in this feed.  Audio sources: CBS Philadelphia, CBC Fifth Estate