Quick Read
- Karen Read, 45, is charged with second-degree murder in connection to the 2022 death of her boyfriend, Boston police officer John O’Keefe.
- The defense claims O’Keefe died from a dog attack and alleges a police cover-up, while the prosecution argues Read hit him with her SUV.
- On Tuesday, Judge Beverly Cannone denied a defense motion for mistrial over a heated exchange about the absence of dog DNA evidence.
- Testimony from forensic pathologist Dr. Marie Russell faced scrutiny, highlighting challenges in identifying dog-bite injuries.
- The retrial follows a mistrial in 2024 when the jury could not reach a unanimous verdict.
The courtroom drama surrounding Karen Read’s retrial intensified on Tuesday, as Judge Beverly Cannone rejected the defense’s motion for a mistrial. This high-profile case, now in its sixth week, hinges on polarizing allegations about the death of Read’s boyfriend, Boston police officer John O’Keefe, in January 2022. While the prosecution contends that Read fatally struck O’Keefe with her SUV during a snowstorm, the defense argues he was beaten and left to die outside a house party—a crime they claim was covered up by law enforcement.
The pivotal mistrial motion and dog DNA controversy
Tensions reached a boiling point during Tuesday’s proceedings when forensic pathologist Dr. Marie Russell was cross-examined by special prosecutor Hank Brennan. Russell, a key defense witness, had testified that O’Keefe’s injuries were consistent with a dog attack rather than a vehicular impact. However, Brennan pressed her on the lack of dog DNA evidence found on O’Keefe’s clothing, a point the defense claimed was improperly raised.
Defense attorney Robert Alessi argued that Brennan’s questioning about the absence of dog DNA was a deliberate and prejudicial maneuver. “Based on that intentional mention, the defense moves strongly, vigorously for a mistrial with prejudice,” Alessi stated. However, Judge Cannone dismissed the motion, ruling that the prosecution’s line of inquiry was both “proper and permissible.” Brennan continued his questioning, emphasizing the absence of published standards for identifying dog-bite injuries and probing inconsistencies in Russell’s prior testimony. Nbcboston reported that Russell admitted she could not be “100 percent certain” about her conclusions.
Allegations of conspiracy and a divided courtroom
The defense’s argument is built around a sweeping conspiracy theory implicating fellow law enforcement officers. They allege that O’Keefe was beaten inside the house of Boston police officer Brian Albert and later dragged outside, where he succumbed to his injuries. This narrative is starkly opposed by the prosecution, which asserts that Read intentionally backed her SUV into O’Keefe after a night of drinking. The case has drawn sharp divisions among the public, with supporters of Read accusing investigators of misconduct.
Notably, this retrial follows a mistrial declared in July 2024 after jurors in the first trial could not reach a unanimous verdict. This year, with a fresh jury in place, the courtroom has been marked by an atmosphere of increased scrutiny and procedural precision. Judge Cannone has enforced stricter buffer zones around the courthouse, and a gag order now limits public commentary by attorneys involved in the case. According to Wcvb, these measures aim to minimize external influences on the proceedings.
Expert testimony under the microscope
Dr. Russell’s testimony has emerged as a central point of contention in the retrial. As a forensic pathologist, she presented findings suggesting that O’Keefe’s injuries were caused by a dog attack, citing tears in the fabric of his clothing as evidence. Yet, under Brennan’s cross-examination, Russell faced challenges to her methodology. Brennan highlighted that her analysis relied on personal experience and peer-reviewed articles, but lacked the support of formal organizational guidelines.
Further complicating matters, Brennan raised questions about Russell’s interactions with the defense team. She admitted to discussing trial transcripts with Alessi and acknowledged his assistance in organizing her report. While Russell maintained that these interactions did not influence her conclusions, Brennan suggested they undermined the transparency of her testimony. As Abcnews noted, these revelations could impact the jury’s perception of her credibility.
The road ahead for the Karen Read retrial
With the trial expected to last several more weeks, the stakes remain high for both sides. Prosecutors are relying on crash reconstruction experts to solidify their argument that Read’s SUV was reversing at over 23 mph when it struck O’Keefe. Meanwhile, the defense continues to frame their client as a victim of systemic corruption within law enforcement. The jury’s ultimate decision will hinge on their assessment of conflicting expert testimonies and the broader narrative of what transpired on that snowy night in January 2022.
As the retrial unfolds, the case serves as a stark reminder of the complexities and emotional toll of high-stakes legal battles. With both sides entrenched in their positions, the pursuit of justice for John O’Keefe and Karen Read hangs in a delicate balance.

