Karen Read’s defense team has filed a motion to amend the verdict slip in her retrial on murder charges as jurors return to the courthouse in Dedham, Massachusetts, for their first full day of deliberations in the death of a Boston police officer named John O’Keefe.

One of her attorneys, David Yannetti, told the court Friday after jurors broke for deliberations that he hoped his proposed amendments would make it less confusing after jurors deadlocked in Read’s first trial last year, paving the way for the second, which began on April 22.

Testimony went on for more than 30 days before closing arguments. Judge Beverly Cannone spent about an hour reading jury instructions before jurors began deliberating around 2:40 p.m. Friday.

She is accused of second-degree murder, drunken driving manslaughter and leaving the scene of a deadly accident.

Read could face up to life in prison if convicted of the top charge.