Day 27 - June 18, 2024

Judge Cannone addresses the Commonwealth's motion to exclude defense expert Dr. Marie Russell, whom the defense disclosed six weeks into trial. Jackson argues the defense provided discovery within three days of learning about Russell and notes the Commonwealth also provided discovery throughout trial, including a report on Jennifer McCabe's interview with Lt. Tully that was withheld until after McCabe testified. Lally objects to the late disclosure and seeks full voir dire. Judge Cannone finds a Rule 14 reciprocal discovery violation occurred but declines to exclude Russell outright, instead ordering a voir dire where the Commonwealth may examine Russell without restriction as a remedy. The witness order for the day is set as Russell, Wolfe, then Rentschler.

Defense attorney Alan Jackson presented Dr. Marie Russell's extensive credentials — MIT pre-med, police officer training including hit-and-run investigation, medical degree from UMass, dual residencies in emergency medicine and forensic pathology at LA County USC, 29 years as an attending ER physician, published research on law enforcement dog bites, and prior expert testimony in state and federal courts. Russell testified that after reviewing autopsy photos, hospital photos, ER records, and related reports, she concluded with a high degree of medical certainty that the injuries on John O'Keefe's right arm were consistent with a large dog attack, identifying parallel scratch marks, puncture wounds, and an arch pattern consistent with a dog's front teeth. ADA Adam Lally challenged her lack of board certification in forensic pathology, the 30-year gap since her last autopsy work, the absence of a written report, her limited material review, and the compressed timeline of her involvement — she was contacted May 17, 2024 and rendered an oral opinion by May 18. Judge Cannone asked follow-up questions, noting Russell had not reviewed reports related to the dog Chloe or UC Davis DNA testing results.

The Commonwealth moves to exclude Dr. Marie Russell's testimony entirely based on the Rule 14 discovery violation and concerns about her competency to opine on injury causation. Lally argues Russell appeared six weeks into trial, was not on the witness list, reviewed limited materials, and lacks foundation to testify about motor vehicle injuries. Jackson counters that exclusion is the most severe sanction available, that the defense did nothing wrong since Russell contacted them through an intermediary, and that disclosure was made within days. Judge Cannone signals she may permit Russell to testify but with limitations, noting Russell struggled with her degree of certainty and did not write a report. Jackson agrees to limit Russell's testimony to dog bite consistency and not motor vehicle injuries. The judge indicates she will rule by Thursday and offers the Commonwealth up to a week to find a rebuttal expert. The proceeding concludes with a brief exchange about the upcoming Daubert hearing format for defense experts Wolfe and Rentschler.

Daniel Wolfe, Director of Accident Reconstruction at ARCCA, was qualified as an expert witness. Jackson established Wolfe's credentials — a PhD candidate in electrical/computer engineering, ACTAR-accredited reconstructionist, member of SAE and other professional bodies, qualified approximately 20 times in federal and state courts. Jackson emphasized that ARCCA was retained not by the defense or Commonwealth but by an independent third party later identified as the DOJ/FBI. Wolfe's team included Dr. Andrew Rentschler (biomechanics) and Scott Kline (engineering). On cross, Lally probed the scope of materials reviewed and established that Wolfe was asked specific questions about pedestrian-vehicle consistency. Lally's final question elicited that nothing in the materials Wolfe reviewed suggested the skull fracture to the back of O'Keefe's head was caused by direct motor vehicle contact.

Defense attorney Alan Jackson presented Dr. Andrew Rentschler's qualifications as a biomechanical engineer and accident reconstructionist from ARCCA LLC. Rentschler detailed his PhD in bioengineering from the University of Pittsburgh, 16+ years at ARCCA, over 150 prior expert testimonies, and applied research including MRAP vehicle seat design for the U.S. military and NHL rink safety redesign. ADA Lally's cross-examination focused on the limited universe of materials Rentschler received, confidentiality restrictions on discussing his findings, and establishing that Rentschler was specifically asked whether O'Keefe's head injuries could have been caused by contact with the Lexus. Judge Cannone inquired about Rentschler's prior Massachusetts testimony. Jackson emphasized that Rentschler was retained independently — not by the defense or prosecution — and had never met or spoken with Jackson before that morning.

Judge Cannone addresses the Commonwealth's remaining concerns after the Daubert voir dire of defense experts Wolfe and Rentschler. Lally states most of his discovery concerns were resolved during the hearing. The dispute centers on the experts' fourth conclusion — that current evidence is insufficient to determine the cause of O'Keefe's brain injuries. Lally argues this opinion falls within forensic pathology, not their expertise; Jackson counters that determining insufficiency of evidence is squarely within their scope and that the Commonwealth's own expert, Dr. Faller, will offer a competing opinion. Judge Cannone reserves her ruling for Thursday, notes the day ended earlier than expected, and excuses the parties for the afternoon.