<p>Elspeth Kerr was a beloved local nurse in 1930s Devonport, but when her husband died suddenly and her foster daughter fell into an inexplicable coma, locals discovered the shocking truth: Nurse Kerr was a serial poisoner. But more than 90 years later, elements of her crimes remain a mystery. In the first of a two part episode, Black Sheep investigates the chilling story.</p><p><em>The Trials of Nurse Kerr: The anatomy of a secret poisoner by Scott Bainbridge</em></p><p><a href="https://www.rnz.co.nz/podcast/black-sheep?share=76f07df2-44c3-4bc1-8206-3221c0b921ac">Go to this episode on rnz.co.nz for more details</a></p>