By all accounts 13 year old Paris Lee Bennett had a positive relationship with his 3 year old sister. Thats why nobody could understand why he decided to end her life in such a brutal and sick way on Feb 4th 2007.

5 year old Samantha Runnion was the light of her familys eye. The bright and goofy girl stole hearts with her silly jokes and delicate nature. But her life would be cut short in 2002 due to the sick and twisted actions of serial child molester Alejandro Avila.

Edmund Kemper was one of the many serial murderers reaping havoc in California in the 1970s. At a staggering 6'9 tall and nearly 300 lbs, he would easily overpower his hitchhiking female victims after offering them rides to and from the local collage campus. His despicable crimes began at just 15 when he brutally gunned down his own grandparents, and would continue for a long and blood filled decade.

One of the more heinous serial killers I've researched, Albert Fishs demented, depraved, sexually deviant attacks on children in the 1920s and 30s are a thing of nightmares. His crime spree lasted decades, having not been arrested until he was in his 60s. Its suspected his number of victims goes far beyond what he admitted to, but we'll sadly never know.

A redo of my very first episode. This is why I remind ya'll to lock your fucking doors!

Israel keys is considered by many to be one of the most prolific serial killers in America, due to his organization, preparedness and overall natural instincts involving murder. His undoing would come as a result of the 2012 kidnapping and murder of Samantha Koenig. An Alaskan case that gained international attention.

!TRIGGER WARNING FOR SEXUAL ASSULT! Nature vs Nurture. Is this kind of evil the result of a rough upbringing, or were these two brothers born monsters? Ill let you decide.