Our new series "With Friends Like These" I detail cases where friends turn upon friends - and become deadly. The first is a case of high school jealousy. Kirsten Costas is attacked by a classmate in Orinda, California.
Kirsten Costas (left) and Bernadette Protti (right) were classmates at Miramonte High School in Orinda, California. Bernadette became obsessed with Kirsten and wanted to be included in her circle of popular girls.
Recommendations for other true crime podcasts:
Kiwi Crimes (New Zealand Crimes)
S'laughter (UK Crimes)