Worst Serial Killer of all time

Pedro Alonso Lopez is by far the most dangerous serial killers of all time with a victim count of over 300. Better known as the Monster of Andes, Lopez killed nearly 100 tribal women in Peru by 1978. Caught by tribal authorities who were ready to sentence him to death, an American missionary who was passing by convinced the tribe to let her take him to the police, the police - who let him go - were not convinced that the killings were of importance to them. Lopez than went to Ecuador where he would kill between three and four girls a week. Once caught in 1980, Lopez confessed to over 300 murders, police only believed him when an unexpected flash flood uncovered a mass grave with most of Lopez's victims. He then was released by the Ecaudor government and deported back to Columbia in 1998.

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