Web Reference: Kirsten Marina Costas (July 23, 1968 – June 23, 1984) was an American high school student who was murdered by her classmate Bernadette Protti in June 1984. [1][2] The daughter of Arthur and Berit Costas, Kirsten Costas and her brother, Peter, grew up in the small suburban town of Orinda, California. [3] . Aug 1, 2022 · In real life, Bernadette Protti almost got away with murdering Kirsten Costas but ultimately ended up confessing to the crime. It shocked everyone in the small community where crimes were something to be read about. Since then, Bernadette Protti has seemingly vanished without a trace. Bridget Moretti (Aubrey Peeples) is the protagonist turned villainess of the 2019 Lifetime film Death of a Cheerleader, a remake of the 1994 TV movie of the same name (airdate February 2, 2019).
YouTube Excerpt: This video answers the question: Can I analyze case of Bernadette Protti and Kirsten Costas? Support Dr. Grande on Patreon: ...
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Bridget Moretti - Latest Information & Updates 2026 Information & Biography

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