No one knows. But that isn't stopping the true crime influencers.This episode was produced by Kelli Wessinger, edited by Amina Al-Sadi, fact-checked by Andrea Lopez-Cruzado, engineered by Patrick Boyd, and hosted by Sean Rameswaram. A flyer that reads "Nancy Guthrie Desparecida" is taped to Nancy Guthrie's mailbox in Tucson, Arizona. Photo by Joe Raedle/Getty Images.Listen to Today, Explained ad-free by becoming a Vox Member: vox.com/members. New Vox members get $20 off their membership right now. Transcript at ⁠vox.com/today-explained-podcast.⁠ Learn more about your ad choices. Visit podcastchoices.com/adchoices