Throughout his career as a serial murderer, Pedro Rodriguez Filo gained a vast variety of nicknames.

He was called Killer Lil Pedro, Killer Petey, the South American Punisher, and my favorite,

Brazilian Dexter.

But more than anything, he became known as Brazil's most prolific serial killer.

He was convicted of a morbidly impressive 71 killings, all of which took place when he was a teenager.

But he continued to insist that he'd actually killed more than a hundred people.

Astonishingly, some of these murders took place while Pedro was in jail.

You'd expect the most jaw-dropping aspect of Pedro's crimes to be that he somehow successfully

killed at least 70 people beginning at the age of only 14. Most 14-year-olds are struggling to

keep the rooms clean and get to school on time. But here Pedro was, stacking bodies like it was his

job. However, this isn't the part of his crimes that gained so much media attention.

The strangest thing about Killer Petey was the way that he selected his victims.

Regardless of their age, race, and gender, he exclusively targeted criminals.

Whether they were rapists, murderers, thieves, or drug dealers, anyone

who lived a life of crime in Pedro's neighborhood had a target on their backs. And the irony is clear.

Taking out so many criminals, Pedro became a criminal himself. Why did a teenage boy

feel so compelled to carry out this extreme form of vigilante justice?

By the age of 13, Pedro was tempted to kill.

It all came to a head one day when he was fighting with one of his cousins on his family's farm,

and he shoved him into the brutal grip of a nearby sugarcane press.

If he'd left his cousin there, it would have been fatal.

But after some deliberating, Pedro decided to save his life instead. Still, he had to think about it.

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