Its an interesting premise and one that most people cant imagine ever happening in real life.

Filho is a Brazilian man who also goes by the nickname Pedrinho Matador.

The vast majority of these victims were criminals themselves, much like our beloved Dexter Morgan.

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O APrendiz Verde

The serial murderer claims that his urge to kill first overwhelmed him when he was just 13 years old.

One year later he acted upon his dark urge and killed for the first time.

To right this mistake, he then killed another guard who was believed to be the real thief.

By this point, he had racked up a death toll of 10 people at the age of 18.

Despite his young age, this was just the start of his rampage.

Filhos next victim would be his own father.

The boys father was spending time in prison for murdering Filhos mother.

Filho sought out revenge and visited his father in jail, where he would stab him 22 times.

Shortly before his 20th birthday, the killer was arrested.

In true Filho style, murder was still on the cards, no matter the situation.

He was placed in a police van alongside two other criminals, one of whom was a known rapist.

His justification for this was that his acquaintance in the van was a sex offender.

It would seem nothing could stop this man from killingeven being restrained and detained.

This can also be seen by his behavior while serving his time in prison.

Reportedly, the convicts Filho sought out to kill were the ones that he felt deserved punishment.

The murderer was originally sentenced to almost 130 years in prison, which was later extended to 400 years.

He can be seen on his YouTube channel, where he discusses his crimes.