Pedro was known as the "Monster of the Andes" after the impressive
numbers of hits he tallied in his three-nation killing spree. A native of
Colombia, his prostitute mother kicked him out of their home at age
eight for fondling his younger sister. Adding insult to injury he was then
picked up by a pedophile and sodomized against his will. By the time he
was eighteen he was gang banged in prison and retaliated by killing
three of his assailants.

Upon his release he started killing young girls with glee and impunity. By
1978 he claimed to have bagged more than 100 girls in Peru. After a
brush with an angry village mob he moved his activities to Colombia and
Ecuador where his blood lust averaged about three kills a week. He
found killing Ecuadorian girls quite enjoyable because they were "more
gentle and trusting, more innocent." Authorities attributed the rash of
disappearing girls to active slavery or prostitution rings in the area.

In 1980 a flash flood uncovered the first of his victims. When he was
arrested he told his interrogators the frightening tale of his reign of
death. At first authorities were skeptical, but all doubts disappeared
when he quickly produced more than fifty graves. It is widely believed that
three hundred hits is a low estimate for this most prolific serial killer.