For 18 years, no one has been able to figure out who killed Mary Cooper and her daughter Susanna Stodden while they were out for a scenic mother-daughter hike in the beautiful mountains of Washington state. No one understands why either. Their deaths and the evidence left behind continue to perplex detectives in Snohomish County. 

• If you know anything about the murders of Mary Cooper and Susanna Stodden on the Pinnacle Lake hiking trail in Washington state in July 2006, you’re asked to call the Snohomish County Sheriff’s Office at 425-388-3845.
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View source material and photos for this episode at: thedeckpodcast.com/mary-cooper-susanna-stodden

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