Serial Killer Monsters...they stroll among us, often undetected on a daily basis. These killers are not fictional creatures with horns, vampire teeth and run around on all fours howling at the moonlit sky. No...there are individuals living among us in plain sight. Within society, approaching their everyday duties until the sun goes down. They are your neighbours, friends or the dads, spouses and church going individuals from the town or village. These people are representing the darkest side of humanity, the most disturbing and depraved of all criminals…Serial Killer Monsters. Notorious killers from Jeffrey Dahmer and B.T.K to Aileen Wuornos and Peter Sutcliffe. Serial Murderers that will amaze us with their sick ability to commit the worst savagery and butchery on another human being possible. At the beginning of this publication we investigate whether serial killers are a product of nature or nurture? Some history into the most famous serial killers and an in-depth analysis into the minds of serial killers.