Day 26 - June 3, 2025

Attorney Alessi moves for a mistrial with prejudice, arguing that prosecutor Brennan intentionally introduced the topic of DNA — specifically the absence of dog DNA on John O'Keefe's clothing — for the first time before the jury during cross-examination of defense expert Dr. Russell. Alessi contends the defense was meticulous about avoiding any mention of DNA and that the prosecution lacked admissible foundation, having strategically chosen not to call their DNA witness in this trial. Brennan responds that the absence of dog DNA goes to the heart of Dr. Russell's opinion about dog-inflicted injuries, that the defense was on notice about rebuttal evidence, and cites specific transcript pages from the December 2024 Lanigan hearing where Alessi himself raised DNA on direct examination. Judge Cannone denies the motion for mistrial, saves the defense's rights, and permits Brennan to continue the line of questioning. A brief sidebar follows regarding foundation requirements for Dr. Walsh's opinion.

Outside the jury's presence, ADA Hank Brennan conducted a brief voir dire of Dr. Marie Russell regarding Dr. John C. Walsh's Deputy Medical Examiner report. Russell confirmed she had received and reviewed the report from the defense and disagreed with Walsh's assessment when forming her opinion that O'Keefe's arm wounds were consistent with a dog bite. Brennan moved to admit the Walsh report, arguing the defense opened the door by vouching for Russell's unique credentials. Defense attorney Robert Alessi objected, citing prior rulings where prosecution witnesses who disregarded materials were not subject to similar document admission. Judge Cannone denied the Commonwealth's request to admit the report, finding Brennan's 'opening the door' argument unpersuasive given the court's prior consistent rulings.

On redirect, defense attorney Robert Alessi addressed two main areas from ADA Brennan's cross-examination. First, Alessi had Dr. Russell examine Exhibit 2011E; Russell conditionally estimated the depicted tail light fragments as perhaps 1/16th of an inch or less if the same edge of the ruler was being used, and testified that fragments of that estimated size could not have caused the parallel abrasion patterns on O'Keefe's arm. Second, Alessi had Russell read extensively from two peer-reviewed forensic pathology studies — De Munnich (International Journal of Legal Medicine) and Pollock (University of Vienna) — which described dog bite wound patterns including parallel claw marks, puncture wounds, and the significance of overall pattern recognition rather than individual wound analysis. Russell also addressed her differential diagnosis process, testifying that O'Keefe's autopsy and medical records showed no fractures, significant bruising, or internal injuries to the arm or legs — injuries she said she would expect from the hypothetical direct arm impact of a 6,000-pound Lexus traveling 24 mph in reverse.

ADA Hank Brennan conducted recross-examination of defense expert Dr. Marie Russell, using the peer-reviewed articles defense attorney Alessi had her read during redirect to challenge her dog-bite opinion. Russell testified that there were no accepted standards for identifying dog bites from photographs and that the articles did not themselves create a standard. Brennan then used the De Munnich fatal-dog-bite study's description of a pattern of punctures, lacerations, and avulsions, obtaining Russell's agreement that those three features were not present on O'Keefe's arm. Russell qualified that agreement by distinguishing the study's fatal dog bites from the nonfatal bites she believed were at issue. Brennan also questioned Russell about other article descriptions and her differential diagnosis excluding a vehicle collision, including her accident-reconstruction training and the source of a 24 mph figure. He concluded by reading, in a question, language attributed to Dr. John C. Walsh's previously excluded report; Russell said she had considered the opinions but did not know whether Walsh had dog-bite examination experience and had to weigh that.

On re-redirect, defense attorney Robert Alessi addressed three points from ADA Brennan's recross. First, he established that Russell — not Alessi — selected which portions of the articles to highlight, clarifying she lacked highlighting tools while traveling from California. Second, Russell explained that the De Munnich and Pollock articles were cited to support pattern recognition methodology for identifying dog bite wounds, not to require every listed characteristic be present. Third, after the court had declined to admit the Walsh report, Alessi read two paragraphs from the Walsh letter; Russell confirmed he read them correctly. The reading included language describing O'Keefe's injuries as 'non-specific' and stating that the absence of additional information prohibits attribution to a specific cause. The letter was then marked for identification.

Defense attorney Alan Jackson conducts a focused redirect of Dighton Police Sergeant Nicholas Barros, addressing two lines of attack from Brennan's cross-examination. First, Jackson uses a birthday analogy to distinguish between forgetting incidental details (day of the week) and forgetting significant observations — Barros confirms he clearly remembers the scene, the people, the conversations, and the condition of the tail light. Second, Jackson neutralizes the implication that their pre-testimony hotel meeting was improper by establishing that Jackson has no local office, that no testimony coaching occurred, and that the meeting was limited to logistics and confirming Barros's prior recollection. Jackson also highlights that the Commonwealth never contacted Barros after his Trial 1 testimony and never subpoenaed him for Trial 2, while establishing that Barros was not present at the Canton PD sally port and therefore cannot speak to what happened to the vehicle there. Barros reaffirms that the tail light condition he observed does not match the photograph shown during direct examination.

ADA Hank Brennan asks Sergeant Nicholas Barros whether his memory has changed since prior testimony, and Barros says yes. Brennan then asks whether Brennan's closeup photograph with the missing right rear tail light is consistent with Barros's memory of what he saw in Dighton on January 29, 2022. Over a defense objection that is overruled, Barros agrees that it is. Immediately before recross, in response to Alan Jackson's question about the photograph Jackson showed him on direct examination, Barros said the tail light condition was not the same as in that photograph. Because the questions identify different photographs, the recross answer does not establish a reversal concerning Jackson's photograph. Judge Cannone then excuses Barros and dismisses the jury for the day.