The Poisonous Mother: Diane Staudte's Antifreeze Murders

Retired FBI agent and criminal profiler Candice DeLong digs into a tragic family betrayal: the antifreeze murders. Diane Staudte, a seemingly ordinary wife and mother from Missouri, shocked her community when it was revealed she was responsible for a series of poisonings that led to the deaths of her husband, her son and the hospitalization of her daughter. In a twisted bid for control and financial gain, Staudte poisoned her family with antifreeze–and acted with the help of her middle daughter and favorite child, Rachel See Privacy Policy at and California Privacy Notice at

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When a shocking crime occurs, people ask “Why?” Was it about power, ego, or revenge? On Killer Psyche, retired FBI agent Candice DeLong draws on her decades of experience to reveal why these murderers and criminals committed these heinous acts. She will reveal fascinating new details about what drove these people, including cases she was close to. Candice will share specific psychological methods and profiling techniques that experts use to understand the deepest part of the most complex, fascinating, and twisted minds, from the Unabomber to Alex Murdaugh to Mary Bell.Listen to Killer Psyche on the Wondery App or wherever you get your podcasts. You can listen early and ad-free on Wondery+. Join Wondery+ in the Wondery App, Apple Podcasts or Spotify. Start your free trial by visiting now.