The judge in the Karen Read murder trial has ordered a voir dire hearing for key defense witnesses in her trial on Friday.
Dedham Superior Court Judge Beverly Cannone ordered the hearing after finding the defense has not shared all messages it has exchanged with the ARCCA experts.
ARCCA is a crash reconstruction firm hired by the U.S. Attorney's office while it investigated the prosecution of Read.
The experts testified in her first trial that John O'Keefe's death could not have been caused by a vehicle strike.
Prosecutors are accusing Read of killing O'Keefe in 2022 by hitting him with her SUV in Canton.
(Photo: WBZ Radio Boston)