After 137 years of speculation, we investigate the forensic breakthrough that may have finally unmasked history's most notorious serial killer through DNA evidence from Catherine Eddowes' murder scene - linking Polish barber Aaron Kosminski to the Whitechapel killings that terrorized Victorian London.

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In this deeply researched episode, we examine:

The brutal 1888 murder of Catherine Eddowes - the Ripper's fourth victim - and how a bloodstained shawl recovered from her crime scene would become crucial evidence over a century later
The controversial journey of this historical artifact - from being taken by a police officer at the murder scene to its 2007 auction purchase by researcher Russell Edwards who commissioned groundbreaking DNA testing
How modern forensic techniques extracted mitochondrial DNA from the shawl, reportedly matching both Eddowes' descendants and living relatives of Aaron Kosminski - a Polish immigrant who was an original police suspect
The scientific debate surrounding this evidence - from questions about chain of custody and contamination to why some experts remain skeptical despite claims of a "100 percent DNA match"

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