No one really knows why people become serial killers. Some people believe that they are born with a need to hunt or harm others. Others believe that their upbringing plays a major role in how their brain and personality develops.
Either way, a serial killer feels a psychological need to kill others. You can find more information here: uplink.com.au/lawlibrary/Documents/Docs/....
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.