On Halloween night in 2004, three roommates passed out candy to trick or treaters at their Napa Valley home before eventually heading to bed in their respective bedrooms. But just a couple hours after falling asleep, someone broke into their home and murdered two of them before running out of the house and out of sight. So, who committed these cold-blooded killings and why? This is the murder of Adriane Insogna and Leslie Mazzara. These are The Napa Halloween Murders.

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Case Sources:

https://napavalleyregister.com/news/local/tears-anger-a-life-in-prison/article_154b1b97-f54f-54d8-8a38-89263242c6ff.html

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

https://medium.com/the-true-crime-edition/the-2004-napa-halloween-murders-37c8d97e3d4b

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

https://www.legacy.com/obituaries/greenvilleonline/obituary.aspx?n=leslie-mazzara&pid=140645941

https://edenpapers.com/blog/crime-the-murder-of-leslie-mazzara-and-adriane-insogna/

https://www.findagrave.com/memorial/36743450/adriane-michelle-insogna

https://www.legacy.com/obituaries/pressdemocrat/obituary.aspx?n=adriane-michelle-insogna&pid=2805589

https://www.globenewswire.com/fr/news-release/2005/10/03/334234/87106/en/DNAPrint-genomics-Forensics-Technology-Assists-Police-in-Identifying-Suspect-in-California-Double-Murder.html