Crime and Justice Atlas

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Amanda Knox Case

Also Known As Murder of Meredith Kercher

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Meredith Kercher, a British exchange student, was murdered in Perugia, Italy, on November 1, 2007. Rudy Guede was convicted of the murder and sentenced to thirteen years. Kercher's American roommate, Amanda Knox, and Knox's Italian boyfriend at the time, Raffaele Sollecito, were separately tried, convicted, and after a long sequence of appeals, definitively acquitted. A court-ordered review of the contested forensic DNA evidence used against Knox and Sollecito, conducted by independent experts, found numerous basic errors in how that evidence had been gathered and analyzed. On March 27, 2015, Italy's Supreme Court of Cassation quashed the convictions for good, citing what it called stunning flaws and culpable omissions in the murder investigation, and noted that no evidential trace of Kercher's own DNA had ever been found on the alleged murder weapon despite that weapon's use to support the earlier guilty verdicts.

Facts
Case YearSourced to the subject's own account
2007 1
LocationSourced to the subject's own account
Perugia, Italy 1
Investigative or Reform SignificanceSourced to the subject's own account
A widely studied case of contested forensic DNA evidence, illustrating how contamination and procedural error in evidence collection can undermine a case built substantially on DNA profiling. 1
Case StatusSourced to the subject's own account
Closed; Rudy Guede convicted of murder (13 years). Amanda Knox and Raffaele Sollecito were convicted, then acquitted on appeal, reconvicted, and finally and definitively acquitted by Italy's Supreme Court of Cassation on March 27, 2015. 1
Cross-Tradition Connections

Exemplifies

Why this is disputed. Amanda Knox's 2007 conviction was overturned on appeal, reinstated, and finally quashed by Italy's highest court in 2015; unlike the Central Park Five or West Memphis Three, no alternative perpetrator was conclusively established for the wider public record on Knox's own conviction, so its use as a wrongful-conviction exemplar is treated here as debated rather than settled.

Investigated By

The Questura di Perugia's Squadra Mobile (flying squad), a Polizia di Stato investigative unit under Detective Superintendent Monica Napoleoni, led the murder investigation and the arrests of Knox, Sollecito and Guede.

Used In

A court-ordered independent review found numerous basic errors in how the contested DNA evidence was gathered and analyzed.

Sources
1. Wikipedia: Murder of Meredith Kercher
Lead and final appeal sections
Quote, Lead and final appeal sections
Rudy Guede (13 years in prison)
View the Source
1. Wikipedia: Murder of Meredith Kercher
DNA evidence review section
Quote, DNA evidence review section
a court-ordered review of the contested DNA evidence by independent experts noted numerous basic errors in the gathering and analysis
View the Source
1. Wikipedia: Murder of Meredith Kercher
Final appeal section
Quote, Final appeal section
the Supreme Court again quashed the convictions, citing 'stunning flaws' and 'culpable omissions' in the murder investigation
View the Source
1. Wikipedia: Murder of Meredith Kercher
Exemplifies: Wrongful ConvictionView the Source
1. Wikipedia: Murder of Meredith Kercher
Investigated By: Polizia di Stato, Investigation section
Quote, Investigated By: Polizia di Stato, Investigation section
Squadra volanti (Mobile Squad) Detective Superintendent Monica Napoleoni told colleagues that the murderer was definitely not a burglar and that apparent signs of a break-in were staged as a deliberate deception.
View the Source
Frequently Asked Questions

Was Amanda Knox ultimately found guilty of Meredith Kercher's murder?

No. Knox and her then-boyfriend Raffaele Sollecito were separately tried, convicted, and after a long sequence of appeals, definitively acquitted. An independent court-ordered review found numerous basic errors in how the forensic DNA evidence used against them had been gathered and analyzed, and Italy's Supreme Court of Cassation quashed the convictions for good on March 27, 2015. Rudy Guede was convicted of the murder separately and sentenced to thirteen years.
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