The defence team for Bryan Kohberger provided testimony this week from a genealogist scrutinising the reliability of genetic genealogy that prosecutors say tied the Idaho murders suspect to the knife sheath found at the scene.
Investigators used genetic genealogy to build a case against Mr Kohberger, 28, who is accused of fatally stabbing University of Idaho students Kaylee Goncalves, Madison Mogen, Ethan Chapin and Xana Kernodle at their off-campus home in November.
