Web Reference: Mar 20, 2024 · A documentary on Bernadette Protti explores the harrowing true story that shocked the nation. Bernadette, portrayed in the film “Death of a Cheerleader,” brutally murdered her schoolmate Kirsten Costas, a case that gained notoriety for its chilling nature. 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] . Explore the dark tales of teenage emotions leading to heinous crimes. Witness Bernadette Protti's lethal jealousy towards her cheerleading rival, Kirsten Cos...
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Bernadette Protti Documentary - Latest Information & Updates 2026 Information & Biography
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