Welcher spoke extensively about force, mass, and acceleration. He says damage to Read’s Lexus matches O’Keefe’s injuries.

Critical evidence that was logged a month after police collected it. Defense lawyers at the trial of Karen Read – ...

In the Karen Read trial in Dedham, an “expert” witness testified that his lackluster company has been paid about $400,000 for ...

Defense attorneys grilled a crash reconstruction expert on his methods during the sixth week of Karen Read’s second murder ...

Defense attorneys grilled a crash reconstruction expert on his methods Wednesday as Karen Read’s second murder trial pushed through its sixth week. Read, 45, is accused of backing her SUV ...

Judson Welcher, a crash reconstruction expert called by the prosecution, was back on the stand for a second day of testimony ...

Jurors saw bizarre photos of the accident deconstructionist, who is expected to be the government's last witness in the ...

Karen Read's defense attorneys will cross-examine key accident expert Judson Welcher about his analysis of John O'Keefe's ...

Weighing in on prosecutors' theory that Karen Read backed her SUV into John O'Keefe, Judson Welcher opined, “That is what happened.” ...

Key testimony in the Karen Read retrial on Tuesday attempted to cement the prosecution’s allegation that Karen Read backed her car into John O’Keefe, causing his death. But, how did it ...

43-year-old Karen Reed of Manisfield is accused of hitting her boyfriend, John O’Keefe with her Lexus SUV during a snowstorm ...

Elizabeth Laposata is a clinical associate professor of pathology and laboratory medicine at Brown University's Warren Alpert School of Medicine. She is a graduate of Bucknell University and the ...