At least nine key witnesses remain for both the prosecution and the defense at Karen Read's second trial. Here's who they are.

A Massachusetts State Police sergeant returned to the stand Monday to testify in the Karen Read murder retrial.Sgt. Yuriy Bukhenik is<a class="excerpt-read-more" href=" More

The protesters fighting the court’s buffer zone in the high-profile Karen Read case have scored a win in federal appeals court. The buffer zone around Norfolk Superior Court in Dedham was expanded for the Read retrial after jurors during the first trial reported that they could hear loud protesters during deliberations.

Defense in Karen Read trial proposes that Boston Police Officer John O'Keefe's death might be linked to a "jealousy"-fueled fight with ATF agent Brian Higgins.

The conduct of a former Massachusetts state trooper who was fired over his handling of the Karen Read murder investigation took centerstage at her retrial this week as defense lawyers spent hours grilling the ex-officer’s supervisor.

A second expert on smartphone forensics testified Wednesday in the Karen Read trial that Jennifer McCabe’s Google search about hypothermia happened after John O’Keefe’s remains were found, not before, as the defense has argued.

Forensic expert Jessica Hyde testified about Jennifer McCabe's disputed Google search at the Karen Read trial Wednesday.