CNN highlights about a dozen witnesses called over the last eight weeks, whose testimony illuminated key pieces of the theories presented by prosecutors and Read’s defense.

Judson Welcher, an accident reconstructionist and biomechanical engineer, testified for the prosecution the evidence is consistent with O’Keefe being struck by a vehicle identical to Read’s on ...

DEDHAM, Mass. (AP) — Jurors in the murder trial of Karen Read began deliberations without a verdict Friday after weeks of ...

He argued that Rentschler’s showing could have prompted Brennan to “wave the white flag” rather than call Dr. Judson Welcher back to the stand for rebuttal.

Defense calls crash reconstruction expert as first witness in Karen Read retrial. Here’s how the day unfolded.

Crash reconstructionist Judson Welcher, a key prosecution witness in the Karen Read trial, completed three days of intense questioning on Thursday inside Norfolk Superior Court.

Earlier, day 23 of testimony began with a hearing outside the jury's presence, where defense attorney Robert Alessi argued that prosecution expert Judson Welcher relied on findings from ...

Karen Read's defense will continue to question a prosecution expert who had an SUV hit him as part of his investigation.

Karen Read's defense attorneys cross-examine key accident expert Judson Welcher in a dizzying day of testimony.

The prosecution on Thursday rested its case in the murder trial of Karen Read, who is accused of backing her SUV into her Boston police officer boyfriend, John O’Keefe, and leaving him for dead ...

Thursday's testimony in the Karen Read trial concluded. Catch a recap of the day here as the prosecution rested its case.