The gene hunters The Fifth Estate : Season 46 Episode 11

Genetic genealogy is the newest frontier in police work, and detectives in Toronto say they are using the technique to hunt a killer responsible for two unsolved murders in 1983. It's the same technique that allowed police to identify the real killer of nine-year-old Christine Jessop, who was abducted from Queensville, Ont., before being raped and killed in 1984 — a case that resulted in the years-long wrongful conviction of Guy Paul Morin. Now they have turned their attention to the 1983 unsolved murders of 22-year-old Erin Gilmour and 45-year-old Susan Tice. Both women were sexually assaulted and stabbed to death in their beds, four months apart in 1983. In our second story, we ask the question: can parents turn their child into a chess genius? Since the hit Netflix series "The Queen's Gambit" captured worldwide attention, many parents have wondered how their son or daughter could become the next Beth Harmon. Terence McKenna explores the very different kinds of outcomes in his documentary, "Recipe for Genius."