Karen Read arrives at Dedham courtroom as murder retrial enters fifth week of testimony

Karen Read and her defense squad arrived at court in Dedham Monday as her murder retrial entered its fifth week of testimony Read is accused of killing her Boston police officer boyfriend John O Keefe by hitting him with her SUV and leaving him to die in a snowbank in January Her lawyers argue she is being framed in a police coverup Her first trial last year ended in a mistrial Massachusetts State Police Crime Laboratory DNA analyst Andre Porto took the stand Friday He declared he detected O Keefe s DNA was exposed on the client side tail light of Read s Lexus Porto mentioned that in addition to O Keefe s DNA the DNA of two unknown people were also present The state did collect DNA from Sgt Yuriy Bukhenik and now-fired Trooper Michael Proctor to exclude them Jurors also saw a video of Read in a docuseries saying she revealed a piece of glass on O Keefe s nose shortly after discovering his body This is a evolving news story stay with NEWS on-air and online for the latest details