Napa Valley, famous for its wine, rolling hills, and peaceful small-town charm, wasn’t the kind of place where doors stayed locked or nightmares felt real. But on Halloween night, 2004, that illusion shattered when two young women were brutally murdered in their own home.

In this episode of Serial Napper, we’re diving into the chilling case of Adriane Insogna and Leslie Ann Mazzara, two roommates whose lives were cut short by someone hiding in plain sight. What began as a quiet evening handing out candy turned into one of California’s most shocking double homicides.

For nearly a year, police chased rumours, false leads, and hundreds of DNA samples. The community whispered about jealous lovers, shady exes, even strangers in the vineyards, but the truth was far more disturbing. The killer wasn’t a drifter or a mystery man. He was someone the victims knew, someone who’d sat at their table, someone they trusted.

This is the story of how Napa learned that even paradise can have monsters, and how betrayal can wear the most familiar face.

Sources:

https://abcnews.go.com/Primetime/LegalCenter/story?id=1187524&page=1

https://catdir.loc.gov/catdir/enhancements/fy0730/2007296752-s.html

https://truecrimesocietyblog.com/2024/10/20/the-napa-valley-halloween-murders/#google_vignette

https://www.cbsnews.com/news/nightmare-in-napa-19-04-2007/

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