What Turns Teenagers Into Cold-Blooded Killers? | Crime 101

They weren’t hardened adults. They weren’t career criminals. They were teenagers — with backpacks, bedrooms, and parents — who crossed an unimaginable line.

In this gripping episode of Crime 101, we explore real cases of young killers who shocked their communities and scarred their countries. From school shootings to satanic rituals, obsession, identity theft, and thrill murders — these stories are more than tragic. They’re chilling reminders of how evil can start early.

🔫 Kosta Kecmanović, just 13 years old, meticulously planned and executed a school shooting in Serbia — leaving behind nine bodies, including seven girls, a boy, and a security guard. His attack was so cold and calculated that it stunned a nation where school shootings had never occurred.

🕯️ Miranda Barber, at 19, claimed to have killed 22 people as part of a satanic cult. She and her husband lured a man through Craigslist and stabbed him more than 20 times in what she called a birthday gift. Her confession led investigators to believe the killing spree started at age 13.

🕹️ Daniel Patrick, a 16-year-old obsessed with Halo 3, gunned down his parents after they confiscated the game. His mother died. His father survived. The case raised global debates on video game violence and addiction — and the power of forgiveness, as Daniel’s father chose to stand by him in court.

🎭 Caroline Reed Robertson was 15 when she decided she wanted to be her beautiful, talented neighbor — Rachel Barber. So she strangled her, buried the body in a pet cemetery, and applied for a birth certificate and bank loan in Rachel’s name. This was one of Australia’s most disturbing identity crimes.

🧠 Leopold and Loeb, two wealthy teen prodigies from 1920s Chicago, believed their intelligence made them superior — even above morality. So they murdered 14-year-old Bobby Franks for the thrill of it. They nearly got away with it too — until one pair of glasses gave them away.

These stories aren’t fiction. They’re not myths. They’re the real crimes of teenagers who planned, manipulated, and executed horrific acts that shocked the world.

🔍 If you’re drawn to the psychology of crime, unsolved motivations, and cases that rewrite what we think we know about youth and violence — this episode will stay with you.

Timestamps:
00:00 Intro
00:23 Kosta Kecmanović: Serbia’s First School Shooter
09:36 Miranda Barber: Satanic Teen Killer or Manipulative Liar?
17:44 Daniel Patrick: Addicted to Halo 3 — and Tragedy
21:31 Rachel Barber & Caroline Robertson: A Life Stolen
27:00 Leopold & Loeb: Genius Kids Who Thought They Were Above the Law
30:11 Final Reflection

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Welcome to Crime 101, where we dive into the world of true crime, uncovering the chilling stories behind infamous crimes, notorious criminals, and unsolved mysteries. In each episode, we explore the facts, theories, and investigations that have captivated the world, providing an in-depth look into the darker side of humanity.

From serial killers to cold cases, and high-profile criminal investigations, Crime 101 takes you through gripping narratives and the complexities of criminal cases. Whether it’s an unresolved mystery or a famous crime story, we bring you the truth, one case at a time.

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Crime 101 focuses on true crime documentaries, detailed investigations, and thought-provoking stories from the criminal world. Don’t forget to like, comment, and share your thoughts on the cases we explore.

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