Shanon Burgess
Shanon Burgess, founder of Aperture LLC, was engaged by the Commonwealth as a digital forensics expert to conduct a supplemental examination of the Lexus LX 570's infotainment system. His analysis focused on an SD card overlooked in the initial extraction, from which he recovered vehicle power-on and power-off timestamps and calculated a 21-to-29-second clock variance between the Lexus's internal clock and O'Keefe's iPhone. Burgess also responded to what he characterized as a potentially misleading clock synchronization analysis by the defense's expert, offering his own methodology as a corrective. His testimony spanned two trial days and drew extensive cross-examination that probed his credentials, methodology, and the circumstances surrounding a mid-trial supplemental report.