Pedro Rodriguez Filho
Arrested in 1973, Pedro was later convicted in 2003 for the murder of at least 71 people and was then sentenced to 128 years imprisonment. He was only 14 when he committed his first killing. He wreaked havoc on local drug dealers, in revenge for his girlfriend’s killing while he was imprisoned. In prison, he even executed his own father, who was also serving time for murder. Filho went onto kill at least 47 inmates while imprisoned. His continued killings have led to his sentence to be increased to 400 years imprisonment.