In Karen Read's first trial, defense dog bite expert Dr. Marie Russell opined John O’Keefe’s arm wounds were from an animal attack.

Prosecutors are asking a judge to keep expert testimony about an alleged dog attack out of Karen Read's​ second trial.

Prosecutors in the Karen Read murder case have asked a judge to exclude a medical expert who took the stand in the case’s first trial from next month’s re-trial.

The defense witness testified in Read's first trial that John O'Keefe's injuries could have been caused by a dog.

I believe that these injuries were sustained by an animal. Perhaps a large dog,” Dr. Marie Russell testified as one of the defense’s first witnesses in Karen Read’s first trial earlier this

Prosecutors in the Karen Read case are asking the judge to keep a defense expert out of the courtroom in the second trial.

While Dr. [Marie] Russell may be able to provide expertise on how one would treat or provide wound care, she lacks sufficient expertise in identifying characteristics of a canine bite, predominantly from an autopsy photograph,