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Forensic Analysis
Welcher Aperture Expert Report and PowerPoint Presentation
Welcher's report and revised PowerPoint covered reconstruction and testing. The report used 12:30:38–12:30:43 for trigger 1162-2; a later presentation used 12:31:38–12:31:43.
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The central prosecution reconstruction exhibit in Trial 2. Defense used version history to show mid-trial modifications at prosecution direction, challenged Welcher's reliance on Trooper Paul's prior CARS data and Scordi-Bello's autopsy findings, and argued slides failed to clearly support claimed measurements. The timing window within the presentation was directly affected by Burgess's mid-trial supplemental report.
Prosecution expert Dr. Judson Welcher's accident-reconstruction materials included a written report and an accompanying 140-plus-page PowerPoint created January 30, 2025, and modified through trial, including day-of changes. The report identified a trigger 1162-2 timeline window of 12:30:38–12:30:43; a later presentation used 12:31:38–12:31:43. The presentation covered vehicle module layout, exemplar testing, arm contact tests, laser scan visualizations, and prior-case comparisons.