Judge Beverly Cannone will allow experts from ARCCA, a crash reconstruction firm, to testify at Karen Read's second trial in the murder of John O'Keefe.

Prosecutors say Read, 45, backed her SUV into Boston police Officer John O’Keefe, 46, after dropping him off at a party ...

Prosecutors say Read backed her SUV into Boston Police Officer John O’Keefe outside the home of a fellow officer in January ...