The Grim Sleeper: A Serial Killer Hidden in Plain Sight cover art

The Grim Sleeper: A Serial Killer Hidden in Plain Sight

The Grim Sleeper: A Serial Killer Hidden in Plain Sight

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 For decades, the Grim Sleeper terrorized South Los Angeles — killing women in neighborhoods he knew by heart, often within miles of his own home. Lonnie Franklin Jr. wasn’t a criminal mastermind or a drifter moving between states. He was a neighbor. A city worker. A man who lived quietly beneath the LAX flight path while violence unfolded around him. In this episode of UNMARKED, we break down how Franklin was able to operate for nearly thirty years without being caught — and why traditional serial-killer profiling failed to see what was happening right in front of investigators. Using geographic profiling, DNA evidence, and firsthand accounts, we examine how systemic blind spots, ignored communities, and outdated assumptions allowed one of America’s most prolific serial killers to hide in plain sight. This is not a story about a monster. It’s a story about what happens when the most vulnerable voices go unheard — and what we can learn from the Grim Sleeper case to prevent it from happening again.

UNMARKED: A true crime podcast built on real cases and never-before-heard audio.

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