A Killer's Genes | Are You Good or Evil? | Horizon | BBC Studios

Professor James Fallon explains the beginnings of his work studying the brians of criminals and murders. Would his work prove the existence of a signature brain profile of a serial killer or are there other factors to consider? Subscribe to the BBC Worldwide channel: http://bit.ly/yqBWhy This is a commercial channel from BBC Studios. Service & Feedback https://www.bbcstudios.com/contact/co...