What are toothbrushes good for? Primarily…fighting tooth decay, though they can also help to clean awkwardly shaped items like jewellery or…in a pinch… to get crumbs out of the toaster. But what about solving a murder? When Francisca Perea Dominguez, 42, was found stabbed to death in her apartment in Aurora, Colorado, all they had to go on initially was that the last man to see her alive was wearing a white cowboy hat. Ultimately it wasn’t the murder weapon, or an eyewitness that placed the murderer at the scene of the crime but instead, an item we all (hopefully) use twice a day,everyday. The humble toothbrush.

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Smoking Gun is a What's The Story original podcast series.

This episode is narrated by Sarah Henderson & Tracy Alexander

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