Karen Read
Live Blog EndedMay 20, 2025

Recap: Credibility of prosecution expert hammered by defense in Karen Read trial

Digital forensics expert Shanon Burgess returned to the stand on Tuesday to take more questions from the defense

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What to Know

  • Karen Read is charged with second-degree murder, manslaughter while operating a vehicle under the influence and leaving the scene
  • She is accused of striking John O'Keefe, her Boston police officer boyfriend, with her SUV in 2022 and leaving him to die alone in the snow outside of a house party in Canton, Massachusetts
  • Her defense team has said she is the victim of a vast police conspiracy and that O'Keefe was fatally beaten by another law enforcement officer at the party

After having his credibility questioned by the defense, digital forensics expert Shanon Burgess returned to to the stand Tuesday morning in the Karen Read murder trial.

Burgess, of the accident reconstruction, biomechanics and digital forensics company Aperture, testified Monday about data the prosecution hopes will pinpoint a timeline of when they believe Read allegedly hit John O'Keefe with her Lexus.

But defense attorney Robert Alessi attempted to poke holes in Burgess' credibility, accusing him of misleading clients about his academic credentials. They said his biography on the Aperture website said he graduated with a bachelor's degree in mathematics and business administration. But he acknowledged under cross-examination that while he has been pursuing a degree for the last 17 years, he does not yet have one.

The defense continues to hammer Burgess' credentials and credibility in further questioning Tuesday, which lasted for hours.

Shanon Burgess, a witness called by the prosecution, was grilled over his credentials and findings by the defense Monday and Tuesday.

Read is accused of hitting O'Keefe, her Boston police officer boyfriend, with her SUV in 2022 and leaving him to die alone in the snow outside of a house party at 34 Fairview Road in Canton. Her defense team has said she was a victim of a vast police conspiracy and that O'Keefe was fatally beaten by another law enforcement officer at the party.

A mistrial was declared last year after the jury was unable to reach a unanimous verdict.

Here's how the day unfolded in court:

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