On Day 1, forensic examiner Kerri Rosana testified that swabs from vehicle door handles and an exterior garage doorknob did not yield DNA results suitable for comparison.
Expert witness
Kerri Rosana
Florida Department of Law Enforcement forensic biology analyst who tested DNA swabs from Dan Markel's car and garage door.
AppearedGarcia–Magbanua
MentionedMagbanua Retrial
18 lines·2 proceedings·2 mentions·2 trials
About
Kerri Rosana was an FDLE crime laboratory analyst and forensic examiner who tested crime-scene swabs for DNA. In the 2019 joint trial, she testified about examining swabs from vehicle door handles and an exterior garage doorknob, explaining that the limited results were unsuitable for comparison with known individuals. She also described how DNA recovery from touched surfaces can vary because of factors affecting deposition and recovery. At Katherine Magbanua's 2022 retrial, a stipulation identified Rosana and conveyed that the DNA results from the tested swabs were not interpretable and did not provide enough information to make an identification.
Trial Record (2)
A stipulation identified Kerri Rosana as the FDLE analyst whose DNA testing of crime-scene swabs produced results that were not interpretable.
Day 1
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