The judge presiding over William Balfour's trial heard an emergency motion Friday morning to release the 911 call placed by Julia Hudson, Balfour's estranged wife.

The motion to make the recording public was filed by The Tribune Co., The Sun Times and the Associated Press.

Judge Burns said he will rule on the motion on Monday.

Meanwhile day five of testimony continued with an FBI forensic expert who specializes in cell phone triangulation.

Balfour is accused of killing three members of singer/actor Jennifer Hudson's family.

Jennifer Hudson, her fiancee and sister Julia were back in court Friday. Thirty witnesses had testified since the trial began Monday.

The prosecution focusing on witnesses who say they heard Balfour make threats against Julia Hudson and her family.