Defense expert challenges prosecution theory in Karen Read trial, stating John O'Keefe's head trauma pattern doesn't match a fall on the lawn where his body was found.

For the second time in less than a week, Karen Read's defense team called for a mistrial in her retrial. Here's what else happened on day 29.

Karen Read revealed she will not be taking the stand at her murder trial. Dozens of supporters, many wearing pink, lined the sidewalk Wednesday, knowing the end of the trial is near. Read is accused of mowing down her Boston cop boyfriend,