A California judge will rule by Thursday on whether Scott Peterson will be granted a new trial – or will spend the rest of his life in prison – in the murders of his wife, Laci, and their unborn son, court papers show. 

Judge Anne-Christine Massullo will rule on Peterson’s fate no later than Thursday, Dec. 22, after learning from attorneys late last week that clerical errors that delayed the decision had since been resolved, documents state. 

Massullo was scheduled to release her ruling by Dec. 16 regarding whether Peterson would be granted a new trial. But she suspended the deadline on Dec. 8, until attorneys could fix errors related to personal information that was left unredacted in recent exhibits. 

Last Friday, she wrote that the issue was resolved after four exhibits were fixed to redact personal information.

Dec. 24 will mark 20 years to the day since Laci Peterson disappeared. Meanwhile, Peterson, now 50, is currently serving a life sentence at California’s Mule Creek State Prison.

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He was convicted in 2004 in the murders of his 27-year-old wife, Laci, and their unborn son, Conner. Prosecutors argued at the time that he killed Laci and disposed of her body on Christmas Eve 2002 in San Francisco Bay.

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Laci Peterson before she vanished in 2002. (WHD, File)

The California Supreme Court overturned Peterson’s death sentence in 2020 after news that prospective jury candidates were improperly dismissed came to light, but the court maintained his conviction.

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Peterson was transferred from California's San Quentin State Prison to Mule Creek State Prison in October as he awaits his fate.

This undated photo shows Laci Peterson, who has not been seen since Dec. 24, 2002. (Getty Images/File)

Peterson's attorneys have argued that a new trial is warranted because juror Richelle Nice was biased and lied in her questionnaire to get on the jury. Meanwhile, prosecutors have argued that Nice "did the best that she could when faced with a 23-page questionnaire that had 163 questions.

"She's inconsistent on her answers," prosecutor David Harris previously told the court. "But being wrong does not necessarily make it false or make her a liar. It just might be that she's really bad at filling out forms."

A child looks at a memorial and missing person's banner offering a reward for the safe return of Laci Peterson at East La Loma Park, Jan. 4, 2003, in Modesto, California. (Justin Sullivan/Getty Images)

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Nice previously testified that she did not have any bias against Peterson until after hearing the evidence presented at trial.