It’s the case that launched a thousand theories. Today, we revisit the tragic death of Kathleen Peterson and the murder conviction of her husband, Michael Peterson, as explored in The Staircase. We analyze the ambiguities that permeate every aspect of the case—from the blood evidence to the couple's finances—and the bitter disagreements among professionals. Our main focus, however, is the wildest theory of all: the owl attack. We discuss the evidence—including microscopic feathers and head wounds—that led some experts to propose a barred owl as the killer, and critically examine why people were so quick to embrace this highly unconventional explanation over more conventional ones.

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Disclaimer: Jeannine and Natalie are commentators on publicly sourced information. Any case information and opinions are based on records in the public domain and are purely speculative in nature. Their comments are not meant to diagnose or treat any condition for listeners, and they are not functioning as licensed therapists providing services on the show. Any information shared based on general client experiences is coincidental and not meant to identify current or past clients. If you or someone you love is having a mental health crisis, please contact 911 or the National Suicide and Crisis Lifeline by calling or texting 988.