Karen Read has filed an emergency petition with the Supreme Court seeking an immediate stay of her trial — which has begun jury selection — pending review by the high court on her claims of constitutional violation.

“Read’s Petition contends that her scheduled retrial on two of the three counts pending against her, including a charge of second-degree murder, will violate the Double Jeopardy Clause because the jury in her first trial reached a final and unanimous, but unannounced, decision that she is not guilty of those charges.”

Read is accused of killing her boyfriend, Boston police officer John O’Keefe, in January 2022. Prosecutors alleged Read hit O’Keefe with her vehicle and left him to die as Boston was hit with a major blizzard. Read has denied the allegations and maintained her innocence.

This is a developing story. Please check back for updates.