The Why Factor

Serial killers and their terrible high profile crimes have spawned a massive global industry... feature films, documentaries, TV series, books, magazine profiles, hit podcasts and video games. But why do many of us find serial killers so intriguing? Is it their psychology or the gory details of their murders? Becky Milligan explores the dark world of the serial killer and asks if any of us could be one. (Image: Dark city alley, Credit: Shutterstock)