A judge has dismissed the jury foreman in the murder trial of a Florida woman charged with killing her 5-year-old son in New Jersey in 1991.

The move came Tuesday as the jury was set to return for a fourth day of deliberations in the trial of Michelle Lodzinski. She was charged in 2014 in the death of Timothy Wiltsey after investigators reopened the case.

The judge didn't explain why the foreman was dismissed and replaced by an alternate juror.

Deliberations will now start over, and jurors were told to disregard whatever the foreman had said during the earlier discussions.

The Port St. Lucie resident first told authorities that Timothy disappeared while they were at the Sayreville carnival, then said he had been kidnapped from there.