352K views · 3.1K reactions | Does it take a serial killer to catch a serial killer? How do police profilers relate to the psychology of a serial killer to help catch them? In today's educational video we are looking at the talented but also disturbing line of work of a serial killer profiler. | The Infographics Show | Facebook

DNA profiling didn't exist when these murders happened, but now that tech has improved, it can be essential for closing cold cases. Stream Catching Killers: http://bit.ly/2I2PmVD | Smithsonian Channel Aviation Nation

Before being executed, these serial killers gave us chilling, disturbing interviews | WatchMojo