•••Britain’sworstchildserialkiller:nurseguiltyofsevenmurdersJoshHallidayNorthofEnglandcorrespondentAneonatalnursehasbeenfoundguiltyofmurderingsevenbabiesandattemptingtokillsixmore,mak-inghertheworstchildserialkillerinmodernBritishhistoryandraisingurgentquestionsoverwhetherhercrimescouldhavebeenstopped.LucyLetby,33,wasconvictedofthe“persistent,calculatedandcold-blooded”murderoffivepre-matureboysandtwonewborngirlsontheunitwheresheworkedattheCountessofChesterhospitalinnorth-westEngland.Asministersorderedanindepend-entinquiryintohowLetbywasabletocarryoutherhorrifyingcampaign,awhistleblowertoldtheGuardianthathebelievedbabieswouldhavebeensavedifhospitalex...