International Serial Killers: Ludke & Lopez

It is an unfortunate fact that a great deal of serial killers has been released after questioning due to insufficient evidence. Sadly, many went on to commit more crimes and murders until enough proof was gathered to legally charge the suspects. In this article, you will encounter a serial murderer who was let go and one who may or may not have committed their alleged crimes.

Pedro Alonso Lopez

Earning the nickname of the ‘Monster of the Andes,’ Pedro Alonso Lopez is credited with raping and killing more than 300 girls. During the 1970s, he was responsible for murdering around 100 tribal women in Peru. When apprehended by tribal forces, Lopez faced being executed for his crimes, but an American missionary in the region convinced tribal authorities to hand him over to the police instead. However, the police let Lopez go, which gave him the opportunity to flee to Ecuador, where he satisfied his lust for killing by taking the lives of 3 to 4 girls on a weekly basis.

Lopez was eventually caught in 1980, but the police had doubts about his guilt until a flash flood uncovered a mass grave where he had transported many of his victim’s bodies. He was then officially arrested. The Ecuador government released the serial killer in 1998 and had him deported to Columbia. Allegedly, he was released for ‘good behavior.’


·    Lopez’s killings took place in Colombia, Ecuador, and Peru. In 1983, Lopez was found guilty of murdering 110 young girls in Ecuador, and he confessed to murdering 240 girls in Peru and Columbia.

·    Lopez was born on October 8, 1948 in Santa Isabel, Columbia.  

·    The ages of Lopez’s victims in Ecuador were between nine and twelve years old.

·    According to Lopez, his mother was a prostitute who gave birth to 13 children. When he was 8 years old, he was caught fondling his younger sister (1957) and was sent out of the family house. A pedophile supposedly picked Lopez up and took him to a deserted house where he was repeatedly taken advantage. An American family found him and enrolled him in a school for orphans. He ran away because a male teacher allegedly molested him. He also claimed to have been gang raped in prison when he was 18 years old. Lopez claims that three of the inmates were killed while still incarcerated.

Bruno Ludke

For a span of 15 years, Bruno Ludke went on a killing spree that started in 1928. Towards the end of World War II, the Nazi police caught him after they allegedly stumbled upon the killer committing necrophilia on the corpse of a recently deceased victim. Later on, he would confess to a handful of crimes. As a result, Ludke was declared insane and was sent to a hospital in Vienna. Doctors conducted medical experiments on him until he died of a lethal injection in 1944.

It is said that even after he underwent sterilization, he was continued to assault and murder women , often by knife or strangulation. It is said that he killed about 85 women.  
·    Controversy surrounds the case of Bruno Ludke because he was connected to about 50 crime scenes that never showed any similarities in motive or method. There were no fingerprints or hard evidence to tie Ludke to these particular crimes.

·    Some people do not believe that Ludke committed all of the crimes he was accused of. He once got caught stealing a chicken, making some doubt that he had the capabilities of evading officers for almost 20 years and get away with several murders.

·    There is a theory that Ludke was framed because he showed intellectual disabilities (frowned upon by the Nazi government) and that the ambitious chief homicide investigator wanted an answer to the crimes committed in the region.