The other day I was listening to SciFri’s online podcasts and I stumbled upon an interview with Dr. Jim Fallon. Jim Fallon is a neuroscientist and professor emeritus at the University of California Irvine. In the interview with NPR’s Ira Flatow, Dr. Fallon tells the tale of how he discovered he has the brain of a psychopath. In this TED talk Fallon does not speak about how he found this out, but he does talk about his family history which does include many murders and in particular, one very famous one. Both video and audio podcast delve into how genetics play into the making of a criminal but also how our environment can to a large extent prevent many from ever veering into criminality.