Ronald Estanislao said he voted to find Karen Read not guilty of manslaughter at the first trial, which ended with a hung jury.

The Karen Read case is the subject of two hearings in separate courthouses on Wednesday. First, Read appealed a recent decision by the Massachusetts Supreme Judicial Court at federal court in South Boston.

The countdown is on to Karen Read's retrial next month, and there are several hearings on the agenda this week.

"There is no longer any federal investigation of John O’Keefe’s death or any related matters," special prosecutor Hank Brennan said. "It is closed. It is over.”

An attorney for Karen Read acknowledged there was little previous caselaw to support the double jeopardy arguments her team is making.

Karen Read's lawyers argued their motion to dismiss the case against her Wednesday following an appearance in federal court.

Read asked a federal judge to intervene and overturn a state Supreme Judicial Court that she faces double jeopardy violations of re-tried on a murder charge.

A hearing on several motions in the Karen Read case is scheduled to continue Wednesday, hours after her defense team argued in federal court that some of the charges should be dropped.

The Karen Read defense team mounted two efforts on Wednesday to have at least two charges — if not the whole case — against her tossed with less than one month to go before the Mansfield woman is scheduled to be retried for the murder of Boston cop John O’Keefe.