Senior Justice Anita Allen made the decision after a speech broadcast on the TV and radio dropped hints the jury would acquit one of the defendants.
“We are concerned in the interest of justice that there has been a communication from the jury room," Contactmusic quoted her as telling the court. “The dilemma that we face is great. I am erring on the side of caution. Justice must be transparent," she added.
The Grease star, who lost his 16-year-old son Jett after he suffered a seizure earlier this year, was said to be upset by the fate of the month-long trial but pledged to continue to cooperate fully with police.
The grieving father previously told court that paramedic Tarino Lightbourne and his co-accused, former Bahamian Senator Pleasant Bridgewater, had threatened to blame him for Jett"s death unless he paid the amount.
The pair pleaded not guilty to conspiracy to commit extortion. A date for the retrial is yet to be marked.