Pedro López became one of the deadliest serial killers in modern history after confessing to the murders of hundreds of young girls across Colombia, Ecuador and Peru during the 1970s and 1980s. Nicknamed “The Monster of the Andes,” López terrorized vulnerable communities throughout South America by targeting poor and isolated children, many of whom disappeared without immediate investigation. His crimes shocked the world not only because of the staggering number of alleged victims, but also because López appeared calm and cooperative while confessing to investigators. Despite claiming responsibility for hundreds of murders, he ultimately served a relatively short prison sentence before disappearing after his release, creating ongoing fear and controversy surrounding his whereabouts and possible later crimes.

Pedro López was born Pedro Alonso López on October 8, 1948, in Tolima, Colombia. His childhood was marked by extreme poverty, instability and violence. According to later interviews and psychiatric reports, López experienced severe abuse during his early years and grew up in deeply traumatic conditions following the death of his father.
López claimed he was expelled from his home at a young age after being accused of inappropriate behavior toward a sibling. He later stated that he survived on the streets, where he experienced further abuse and exploitation. Various reports suggested he spent time in institutions and prisons during his youth, where violence allegedly continued to shape his psychological development.
As an adult, López drifted between Colombia, Ecuador and Peru, often traveling through poor rural communities. Investigators later believed he deliberately targeted vulnerable areas where missing children were less likely to receive widespread media attention or intensive police investigations.
During the 1970s and early 1980s, Pedro López carried out a prolonged series of murders targeting young girls across South America. Authorities believed he lured victims away from markets, villages and public streets before sexually assaulting and murdering them in isolated locations.
López later confessed to killing more than 300 girls, though exact victim numbers have never been conclusively verified. Investigators in Ecuador alone linked him to dozens of murders after discovering burial sites containing victims’ remains. His confessions and crime scene information convinced many authorities that he was responsible for one of the highest serial murder counts ever recorded.
The murders caused widespread panic in several regions, particularly among poor indigenous communities where children frequently disappeared without explanation. Families often lacked resources to pursue investigations, allowing López to continue operating across borders for years before his eventual capture.
Pedro López primarily targeted young girls between the ages of approximately 8 and 12. He often approached children in markets or rural villages, presenting himself as friendly and trustworthy before luring them into secluded areas.

Start speaking a new language in 3 weeks with Babbel 🎉 . Get up to 65% OFF your subscription ▶️ Here: HERE: https://go.babbel.com/12m65-youtube-diretrip-may-2022/default The Monster of the Andes, Pedro Lopez, is one of the worst (possibly THE worst) serial killers of all time, racking up a body count of over 300 if his story checks out. The worst thing is, though, that he was set free. Once again, thanks again for the support, everyone. If you'd like to support the channel further, please check out the Patreon page: https://www.patreon.com/diretrip Feel free to contact me if you have any questions or case recommendations! Twitter - https://twitter.com/DireTrip Facebook -- https://facebook.com/DireTrip Instagram -- https://www.instagram.com/diretrip

Pedro Alonso López is a Colombian serial killer, who was sentenced for killing 110 girls, but who claimed to have killed more than 300 girls across Colombia, Peru, and Ecuador. Aside from uncited local accounts, López's crimes first received international attention from an interview conducted by Ron Laytner, a longtime freelance photojournalist who reported interviewing López in his Ambato prison cell in 1980. If you like my videos, please consider joining my Patreon, this is how I manage to pay for my narrations. Thank you! https://www.patreon.com/serialkillers Facebook: https://www.facebook.com/SKDocumentaries Discord: https://discord.gg/jrdhSenF Our Podcast: https://podcast.sptfy.com/skd https://apple.co/3RbA2L7 Tags: Serial killer documentary,Serial killers,True crime,Crime documentary,Killer documentary,Murder investigation,Criminal psychology,Crime analysis,Forensic analysis

Pedro Lopez was a serial child killer who is believed to have sexually assaulted and killed over 300 young girls throughout Colombia, Ecuador, and Peru. He is currently still at large. You can listen to our Podcast by searching "this is MONSTERS": Apple Podcasts Google Podcasts Amazon Podcasts Stitcher Pocket Casts Player FM TuneIn Radio Public You can check out our NEW merch by shopping at https://this-is-monsters.creator-spring.com Twitter: https://twitter.com/thisis_monsters Instagram: https://www.instagram.com/thisis_monsters/ If you are a victim of domestic abuse, please reach out to someone for help. Please call the national domestic abuse hotline at 1-800-799-SAFE. That’s 1-800-799-7233 or go to thehotline.org to chat with someone online. This website is set up so that at any time, hitting the escape key twice will instantly take your browser to a google search page. In the event the abuser is nearby, you can ensure that you don’t get caught trying to get help. If you are having feelings of harming yourself or someone else or even just need someone to talk to, please contact your local mental health facility, call 911 or call Mental Health America who operate the National Suicide Prevention Lifeline by dialing 988 in the US. They’re available 24 hours a day, 7 days a week.
According to investigators and López’s own confessions, he sexually assaulted victims before strangling or otherwise murdering them. Authorities believed he specifically targeted impoverished communities because police resources were limited and missing children often received minimal attention.
López later described feelings of satisfaction and control during interviews with investigators, displaying a disturbing lack of remorse while recounting details of the murders. Psychologists examining the case described him as manipulative, predatory and highly dangerous, with an ability to blend into vulnerable communities without immediately drawing suspicion.
In 1980, Pedro López was captured in Ecuador after attempting to abduct a young girl from a market. Local residents intervened and detained him before police arrived, potentially preventing another murder.
Following his arrest, López began confessing to investigators and led authorities to multiple burial sites containing the remains of murdered children. The discovery of these graves shocked Ecuadorian authorities and confirmed fears that a serial killer had been operating across the region for years.
Investigators were stunned by the scale of López’s admissions and his calm demeanor during questioning. His confessions drew international media attention, with newspapers around the world describing him as one of the most prolific serial killers in history.
Pedro López was convicted in Ecuador for multiple murders and sentenced under the country’s criminal laws at the time. Despite the enormous number of alleged victims, Ecuador’s legal system imposed a relatively limited maximum sentence compared to the scale of the crimes.
López spent years imprisoned in Ecuador before eventually being transferred to Colombia following the completion of his sentence. Reports later indicated he was held in a psychiatric institution before being released during the late 1990s after being declared mentally stable enough for discharge.
The revelation that López had been released caused outrage and fear throughout South America and internationally. Authorities later attempted to monitor his whereabouts, but over time his location became uncertain, fueling rumors and speculation that he may have committed additional crimes after release.
The case remains heavily criticized because many people believe López never faced punishment proportionate to the scale of his alleged crimes. Questions surrounding his release and disappearance continue to generate controversy decades later.
Pedro López became internationally known as “The Monster of the Andes,” a nickname reflecting both the geographic scope of his crimes and the extraordinary number of alleged victims linked to him.
His case exposed serious weaknesses in law enforcement coordination across parts of South America during the 1970s and 1980s. Poor communication between countries and limited investigative resources allowed López to move between regions while continuing to target vulnerable children.
López’s disappearance after release remains one of the most disturbing aspects of the case. Over the years, various unconfirmed reports claimed he may have resumed killing or lived under false identities, though authorities have never conclusively established his later activities or whether he is still alive.
"I like the girls in Ecuador, they are more gentle and trusting."— Pedro López
"I am the man of the century."— Pedro López
Pedro Lopez: Monster of the Andes
Film adaptation inspired by the crimes and investigations surrounding Pedro López.
Serial Killers: The Real Life Hannibal Lecters
Included segments discussing López and other prolific international serial killers.
World’s Most Evil Killers
Featured Pedro López in episodes examining prolific international murderers.
Born to Kill?
Explored López’s childhood, confessions and cross-border killing spree.
Most Evil
Psychological analysis program discussing López’s crimes and behavior.
Dark Minds
Examined the scale of López’s murders and his later disappearance.
Historical investigative documentaries
Programs frequently examined:
South American crime retrospectives
Coverage focused on:
YouTube and archival true crime analysis
Many productions discussed:
Last Podcast on the Left
Covered the disturbing scale of López’s crimes and psychological background.
Casefile
Examined the investigation, burial sites and confessions tied to the murders.
Morbid
Discussed the brutality of the killings and failures that allowed López to evade capture for years.
Serial Killers
Detailed López’s upbringing, methods and eventual capture in Ecuador.
The Pedro López case received international media coverage from:
Major themes included: