Lucy Letby: Could killer nurse have been stopped sooner?

Lucy Letby's appalling crimes were a terrible betrayal of trust which have shocked and sickened staff throughout the NHS, England's chief nursing officer has said - promising that the health service will learn "every possible lesson". But for the devastated families - there's a never ending search for answers: how did it happen and what makes a nurse become a serial killer? (Subscribe: https://bit.ly/C4_News_Subscribe) ----------------------- Follow us: Facebook -   / channel4news   Twitter -   / channel4news   TikTok -   / c4news   Instagram -   / channel4news