Pedro Rodrigues Filho lived by his own code of ethics. He believed himself to be the judge, jury, and executioner. Follow his code and you will make it out alive but if you fall short, it may be the last thing you ever do. 

Sources: 

https://criminalminds.fandom.com/wiki/pedro_rodrigues_filho

https://cvltnation.com/serial-killer-vs-criminals-the-real-life-dexter-murderer-pedro-rodrigues-filho/

https://www.gazetadopovo.com.br/wiseup-news/brazils-greatest-serial-killer-is-a-hit-on-youtube-as-a-crime-commentator/

https://todayinhistorydotblog.files.wordpress.com/2020/05/killer-petey.jpg?w=768