Prosecutors allege that Lucy Letby poisoned 17 babies either with insulin or by injecting them with air starting in June 2015.

FacebookLucy Letby has pleaded not guilty to all charges .

Starting in 2015 , babies at Countess of Chester Hospital in Chester , England , were dying at alarming charge per unit —   and no one knew why . Now , prosecutors allege that it was all because of 32 - year - old neonatal nurse Lucy Letby , who designedly killed seven baby under her upkeep .

“ sister who had not been unstable at all all of a sudden degenerate , ” Prosecutor Nick Johnson told jurors at Letby ’s ongoing trial run , according to theWashington Post . “ Sometimes infant who had been disturbed but then been on the mend short deteriorated for no patent reason . ”

Lucy Letby

FacebookLucy Letby has pleaded not guilty to all charges.

Between June 2015 and June 2016 , the prosecution claims , Letby stamp out seven infants and attempted to kill 10 more . The Independentreports that prosecuting attorney believe Letby injected the babies with zephyr , poisoned them with insulin , or fed them too much milk .

“ The collapses of all 17 children concern were not ‘ naturally occurring tragedies , ' ” Johnson explained , concord toPeople . “ They were all the work , we say , of the cleaning woman in the dockage , who we say was the constant , malevolent presence when things direct a turning for the risky for these 17 fry . ”

LINDSEY PARNABY / AFP via Getty ImagesCountess Of Chester Hospital , where Lucy Letby allegedly killed or tried to bolt down more than a dozen infant .

Countess Of Chester Hospital

LINDSEY PARNABY/AFP via Getty ImagesCountess Of Chester Hospital, where Lucy Letby allegedly killed or tried to kill more than a dozen infants.

The deaths started with a baby identify only as “ tiddler A ” who die just one day after his birth in June 2015 . harmonise to theIndependent , he ’d been born ahead of time but healthy , and seemed to take a turn for the worse when Letby read up for her fault . He died within just 90 minutes under her care .

The prosecution alleges that Letby injected him with air , impart unusual discoloration on his skin that became a “ hallmark ” of the babe who got sick or die during her shifts . What ’s more , the prosecution also believe that Letby seek to kill Child A ’s matching sis . Johnson name an expert pediatrician who consider that Child A ’s sister had been a dupe of “ some form of sabotage , ” and that she may have also been inject with tune .

Over the next year , prosecutors claim , Letby continued killing or trying to kill infant at the hospital . The Guardianreports that she allegedly tried to kill one infant , identified as “ Baby I , ” four time before succeeding . Letby then sent the sept a commiseration visiting card .

Lucy Letby Investigation

Peter Byrne/PA Images via Getty ImagesPolice investigate a house in Chester, England, believed to belong to Lucy Letby.

The effort to defeat Baby I , Johnson said , per theBBC , were “ unrelenting … calculated … cold - blooded … extreme … even by the standards of this overall instance . ” He added : “ [ Baby I ] was resilient but finally at the fourth attempt Lucy Letby succeeded in killing her . ”

As deaths at Countess Of Chester Hospital uprise , hospital executive lead off to grow alarmed . They set in motion an enquiry to strain to figure out what was causing so many babies to die , which turned up an unsettling conclusion . All of the death , according to theIndependent , had “ one uncouth denominator ” — neonatal nurse Lucy Letby .

“ Many of the event in this case fall out on the Nox shifts , ” Johnson explain in court . “ When upon Lucy Letby was move on to mean solar day shifts , the collapses and deaths moved to the day shifts . ”

Peter Byrne / PA Images via Getty ImagesPolice investigate a sign of the zodiac in Chester , England , believed to belong to to Lucy Letby .

Letby , however , has deny all charge against her . officially charge with the baby ’ deaths in 2020 , she is currently standing test , where she pleaded not guilty to murdering five boys and two girls . Letby also plead not guilty to the assay slaying of 10 other children , per the BBC .

TheIndependentreports that the identities of the children , both those who died and those who survived , will not be revealed per lawcourt purchase order . The run , which has gripped England like few since the trial of fellow killerJoanna Dennehy , is expected to last six months .

“ It is a complicated caseful by any measures , ” Johnson said , per theDaily Mail . “ It concerns seven allegation of execution and allegations of set about murder of 10 other children . ”

After reading about Lucy Letby , see howGenene Jonesmay have defeat as many as 60 kid while working as a neonatal nanny . Or distinguish how German nurseNiels Högelkilled 85 patients after inducing cardiac stay so that he could show off his resuscitation acquirement .