How “science” and “justice” failed Robert Lee Stinson. Join the video lab to support more ambitious projects like this one: https://www.vox.com/join False Positive is a documentary produced by Vox Senior Producer Joss Fong about the conviction of Robert Lee Stinson. Stinson spent 23 years in a Wisconsin prison for murder after two forensic odontologists concluded that his teeth matched bite marks found on the body of the victim. False Positive looks at the structural and cultural factors that have made the U.S. criminal justice system susceptible to unreliable forensic science, and that continue to impede progress toward more reliable methods today. This documentary was originally released as three separate episodes: Part 1: https://www.youtube.com/watch?v=kiw1Zv-B02c Part 2: https://www.youtube.com/watch?v=beixsgKr93o Part 3: https://www.youtube.com/watch?v=-1y8Nq0ndsk To go even deeper into the series, become a member of the Vox Video Lab, for exclusive access to a live Q&A about this story, and additional behind-the-scenes details on the series. Watch the Q&A with Joss and Johnny Harris: https://www.youtube.com/watch?v=juBYSt_hB9I And the Lab extra here: https://www.youtube.com/watch?v=aFZ8sCnR1So Vox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out http://www.vox.com/ Check out our full video catalog: http://goo.gl/IZONyE Or our podcasts: https://www.vox.com/podcasts Follow Vox on Twitter: http://goo.gl/XFrZ5H Or on Facebook: http://goo.gl/U2g06o