The ongoing trial is Read’s second; her first murder trial ended in a high-profile mistrial last July after jurors returned deadlocked. Abby Patkin is a general assignment news reporter whose work touches on public transit, crime, health, and everything in between. She has been covering the Karen Read murder case.

Karen Read pleaded not guilty to murder charges in the death of Boston police officer John O’Keefe and is facing a retrial after a jury was unable to reach a verdict last year.

A crime lab analyst with Massachusetts State Police will return to the witness stand after testifying on Wednesday. Maureen Hartnett will continue testimony on her examination of evidence, including read’s SUV and O’Keefe’s clothing.

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.