Dateline NBC S2024E16 - Evil Walked Through the Door

The separate murders of two women in Toronto ignite an investigation that spans four decades, taking detectives from the big city to a remote, northern town. The case is finally cracked when diligent old-fashioned detective work is combined with modern breakthroughs in genetic genealogy.

NEW INTERVIEWS WITH: Det. Stephen Smith, Det. Andrew Doyle, Det. James Atkinson, Sean McCowan, Ben Tice, Vanessa Vansittart and Kristin Basso.