Numbers That Killed: How Flawed Statistics Turned Lucia de Berk Into a Murderer-and Shattered European Justice
NUMBERS THAT KILLED: How Flawed Statistics Turned Lucia de Berk Into a Murderer-and Shattered European Justice
A hospital ward is built for emergencies-coded alarms, sudden collapses, impossible choices. Most of the time, tragedy has no villain.
Then someone starts counting.
When a series of patient crises seems to follow one nurse from shift to shift, suspicion doesn't arrive like a siren. It arrives like a whisper. A sideways glance. A sentence that sounds almost reasonable:
It always happens when she's here.
Soon, coincidence is no longer treated as chance-but as proof. Charts replace context. Spreadsheets replace stories. And in a courtroom hungry for certainty, a number can become a verdict before the verdict is spoken.
Numbers That Killed is a gripping narrative of how a Dutch nurse, Lucia de Berk, was turned into an "angel of death" through pattern-thinking, cognitive bias, and statistical claims presented with crushing confidence. But this is not a sensational killer-nurse tale. It's a suspenseful true-story examination of how systems break-how fear shapes facts, how institutions defend a storyline, and how one flawed calculation can eclipse the complexity of medicine and the presumption of innocence.
As the case tightens like a noose, outsiders begin to question the math everyone else accepts. What they uncover forces a terrifying question into the open:
What if the certainty was built on a mistake?
Inside you'll find...The moment suspicion is born-and how it quietly spreads inside pressured hospital systems
The "pattern" argument that turned ordinary tragedies into a narrative of intent
A clear, plain-language breakdown of the prosecutor's fallacy and why it misleads courts
How incident lists and selective counting can manufacture "astronomical odds"
The human cost of being convicted on inference-and what exoneration can never fully restore
The reckoning: how expert scrutiny helped dismantle a case that looked unbreakable
The lasting lessons for justice, healthcare, and anyone who has ever mistaken emotion for evidence
Reader guidance / age rangeThis book is written for adult readers and mature teens (16+) with interest in true crime, justice, medicine, and wrongful convictions.
Content note: Includes discussion of patient deaths, grief, wrongful imprisonment, institutional pressure, and psychological distress (non-graphic; no gore).
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