Bryan Kohberger lawyer uses expert to cast doubt on genetic genealogy

The lawyers for murders suspect have put forward testimony by a genealogist that casts doubt on the reliability of genetic genealogy, which investigators used to arrest him.

Detectives relied on genetic genealogy to build their case against the 28-year-old, as they used the method to build a a DNA profile from the DNA left on a knife sheath at the scene - and then matched that profile to Kohberger's dad before his arrest.

While prosecutors claim they matched DNA from the sheath after he was arrested, they first used genetic genealogy, and his defense has so far used by investigators to collect evidence and build the DNA profile, arguing it could have been flawed or unconstitutional.

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