Murder In Moscow: The Experts Behind The case Against Bryan Kohberger (Part 13) (9/11/26)

Katherine White, Stephanie Wilt and Hailey Youngling were all forensic scientists with Idaho State Police Forensic Services who became part of the prosecution’s expert-witness lineup in the Bryan Kohberger case. White, a Forensic Scientist III, specialized in forensic biology and DNA and was expected to explain DNA extraction, quantification, amplification, STR and Y-STR analysis, probabilistic genotyping and the examination of biological fluids and trace evidence. Her role was tied to the broader DNA work that became central to the case, including explaining how biological material was collected, preserved, tested and interpreted. Wilt was also a forensic biology and DNA scientist and personally examined numerous pieces of evidence from 1122 King Road, Kohberger’s apartment and his vehicle. Her reports covered swabs from walls, floors, doors and furniture inside the house as well as hairs, stains, vehicle upholstery and Kohberger’s reference DNA sample. She was also involved in examining the knife sheath, including presumptive testing that indicated blood was present on portions of it.

Hailey Youngling’s role was more closely connected to crime-scene and latent-print work. She responded with other ISP forensic scientists to Kohberger’s Pullman apartment on December 30, 2022, helped process the residence, verified portions of the forensic work and later participated in collecting Kohberger’s fingerprints, palm prints and other exemplars after he returned to Idaho. Youngling also served as a verifier on latent-print examinations connected to evidence from the King Road house, including prints developed from surfaces inside the residence, and she submitted at least one latent print from the sliding-door area for a database search that returned no identification. Together, White, Wilt and Youngling represented three different pieces of the forensic case the State intended to explain to jurors: White on DNA interpretation, Wilt on the biological evidence actually recovered and tested, and Youngling on the physical processing and fingerprint evidence. Their inclusion on the expert list showed just how much of the prosecution’s case depended on reconstructing the crime through laboratory science rather than through a single eyewitness or confession.


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030326+REDACTED+Exhibits+S-1+through+S-13+to+States+Amended+Supp+Resp+to+Rqst+for+Disc+RE+Expert+Testimony.pdf