This is the true and harrowing story of Thor Nis Christiansen. He could give every single budding criminologist the best insight into just how a serial killer evolves. His story is very hard hitting and indeed at times unbearable to contemplate. It is a chance to step into the shoes of a monster who showed the world just how his heinous crimes intensified. Was his upbringing to blame; or a head injury, maybe a trauma in life that set his world alight? This is a case that is now over forty years old. A case that must be revisited due to its many elements of interest both scientifically and for future profiling purposes. How did Thor Nis Christiansen become a monster?