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Forensic Analysis
Whiffin March 2025 Report on O'Keefe's Phone
Whiffin's March 2025 phone report covering GPS accuracy, calls answered to McCabe at 12:14 and 12:29, and unanswered calls to Read beginning at 12:33.
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Defense used the full report on cross-examination to show Whiffin's report contained location findings favorable to the defense — including the accuracy radius covering 34 Fairview — that were omitted from his jury presentation, and to document when the phone ceased active use.
Prosecution expert Ian Whiffin's March 2025 forensic analysis report on John O'Keefe's phone, covering location data (including a white-circle depiction of phone accuracy radius covering 34 Fairview Road), call history showing answered calls to McCabe at 12:14 and 12:29 and unanswered calls to Karen Read starting at 12:33, and additional findings entered at trial as separate exhibit pages.