Three managers at the hospital where Lucy Letby worked have been arrested on suspicion of gross negligence manslaughter. Sky’s Greg Milam explains this latest update. Letby was found guilty of murdering seven children and attempting to murder seven more between June 2015 and June 2016 while working in the hospital's neonatal unit. #shorts #crime #police SUBSCRIBE to our YouTube channel for more videos: http://www.youtube.com/skynews Follow us on Twitter: https://twitter.com/skynews Like us on

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