Commonwealth v. Read — Trial Archive
Person Richard Green Trial 1Defense digital-forensics expert who analyzed phone location, search, and call records. ← All People
🔬 Expert Witness · Defense team

Richard Green

Courtroom still of Richard Green.

Defense digital-forensics expert who analyzed phone location, search, and call records.

Trial 1
251 lines 2 proceedings

About

Richard Green examined data associated with the phones of Karen Read, John O’Keefe, and Jennifer McCabe for the defense. He testified that O’Keefe’s phone first registered in the 34 Fairview driveway at 12:24:28 a.m., but that no location data met a three-foot accuracy filter. He also explained that Apple Health movement records covered time ranges, not exact moments of movement. Green interpreted McCabe’s phone data as showing that a search for “hos long to die in cold” occurred at or before 2:27:40 a.m. He also testified that identified early-morning call records were deleted and, in his opinion, had been deleted by a user. Other digital-forensics witnesses disputed those interpretations, placing the searches around 6:23 and 6:24 a.m. and describing the call-record deletion as automated activity. On cross-examination, Green acknowledged that further testing had changed his earlier view of a separate “how long to digest food” item, which he then believed was probably an automatic suggestion. He also acknowledged that he lacked a specific Cellebrite certification.

Trial Record (2)

Trial 1 First Criminal Trial Apr 29, 2024 – Jul 1, 2024 2 proceedings

Day 29

Direct Richard Green - Direct Examination Richard Green David Yannetti 7 highlights 152 lines spoken
Summary

Digital-forensics expert Richard Green gave opinions on phone-location data, a Safari search artifact, and deleted call records; the court limited one opinion's phrasing and required redaction of a call-log exhibit.

Highlights (7)
Quote

“It could be 5 meters or 10 meters, but none of it was granular enough at a 3 foot or less accuracy level.”

Explains the precision limitation Green identified in the location data.

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Quote

“That that would have happened at or before January 29, 2022, at 2:27:40 a.m. in the morning.”

States Green's opinion on the timing of the search artifact after the court limited the scientific-certainty phrasing.

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Quote

“So we found no live data, so 100 percent of them would have been deleted.”

Summarizes Green's characterization of the call-log entries in the identified time period.

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Show 3 more
Key Moment

Green described his digital-forensics experience and said he was engaged to review data from phones belonging to Karen Read, John O'Keefe, and Jennifer McCabe.

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Key Moment

Green testified that John O'Keefe's phone first registered in the 34 Fairview driveway at 12:24:28, while a CellHawk filter for accuracy of three feet or less returned no results.

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Key Moment

Green testified that the Apple Health records showed distance, steps, and elevation changes over time ranges, but could not identify where within a range the steps or flights occurred.

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Cross Richard Green — Cross-Examination Richard Green Adam Lally 3 highlights 99 lines spoken
Summary

The Commonwealth challenged Richard Green's digital-evidence analysis; he acknowledged that further testing changed one interpretation in his prior affidavit while defending his search-timing opinion.

Highlights (3)
Quote

“That's inconsistent with the actual data I'm seeing on this actual phone with this precise iOS version.”

Green maintained that the record supported his timing interpretation despite the Commonwealth's alternative explanation.

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Quote

“Yes. And on that day, that is what my true and proper belief was. Okay. It -- since further testing, I have found that I now believe that that was probably an automatic one, and if I've caused you any distress, I apologize.”

Green acknowledged that further testing changed an interpretation stated in his affidavit.

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Quote

“Yes, with the asterisk they updated one of two programs I think.”

Green qualified his agreement that Cellebrite had modified software related to the disputed interpretation.

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Locations Touched By This Testimony

34 Fairview Road 2 procs Canton Police Department 1 proc