
(LOS ANGELES) — After investigating the case for more than a year, the Los Angeles Innocence Project has filed voluminous evidence it says shows Scott Peterson did not murder his wife and unborn son in 2002.
In a nearly 400-page petition to the California Court of Appeals, filed Friday night, the LA Innocence Project argued Scott Peterson is innocent and his conviction should be overturned.
Laci Peterson, who was 27 years old and eight months pregnant, disappeared on Christmas Eve in 2002. Her body was found in San Francisco Bay in April 2003.
Scott Peterson, now 52, was arrested and charged with first-degree murder in the death of his wife and second-degree murder in the death of their unborn son. A jury found him guilty following a six-month trial in 2004.
The Los Angeles Innocence Project claims Scott Peterson was denied his rights to due process and a fair trial because jurors did not hear evidence over two decades ago that they argue could have affected the outcome of the trial, and police and prosecutors did not fairly investigate the case, and even destroyed possibly critical evidence.
“In my opinion, once the police locked onto Mr. Peterson as the prime suspect, they had no interest in finding evidence showing that someone other than Scott may have abducted Laci Peterson because that evidence did not fit with their working theory of the case,” LA Innocence Project director Paula Mitchell stated in the filing. “In addition to ignoring the eyewitness reports, the police turned a blind eye to other exculpatory evidence that would have exonerated Mr. Peterson.”
She said she believes police press releases included information “indicating to the public that police did not believe Mr. Peterson’s alibi, almost from day one.”
“This created a domino effect and ultimately created a tidal wave of media attention focused on Mr. Peterson as the prime suspect in the case,” she continued.
In their filing, the LA Innocence Project claims they have new scientific evidence that shows the date of the death of the Petersons’ unborn child was later than claimed at trial, and that an expert in water movement can prove that Laci Peterson’s body was not dumped where police said it was in December 2004 — two points they say would undermine the prosecution’s case.
“This new evidence undermines the prosecution’s entire circumstantial case against Petitioner, and shows that the jury relied on false evidence, including false scientific evidence, to convict him,” the petition states. One of the attorneys on the case said that in her entire career, she has never seen exculpatory evidence this strong.
The filing also makes multiple claims of new evidence and witnesses involving two crimes they say happened around the same time as Laci Peterson’s disappearance near the Petersons’ home — a burglary at a neighbor’s home and a burned van in Modesto’s Airport District.
Last year, a judge did not let them test for Laci Peterson’s DNA on a bloodstained mattress found in the van, so his attorneys do not know if her DNA is on that mattress. Prosecutors have argued that testing on one of the mattress cloths found male DNA, so no further testing would be required. The LA Innocence Project said it has sought “more precise DNA testing to determine if there is a link to the crimes in this case.”
A judge did grant them access to review some discovery in the case from the trial in 2004, including police interview transcripts and case files.
“Every aspect of the prosecution’s theory as to how the crimes in this case were committed has now been shown to be false,” the petition states.
The petition also includes a 126-page declaration from Scott Peterson, who did not testify during his trial, in which he maintains his innocence and says he was wrongfully convicted of murder.
“It is important to me that whoever killed my wife and son be found and held accountable,” he stated. “If whoever committed such violence against Laci and Conner is still at large they are a danger to public safety. It is also important to me that I clear my name and my family’s name because I did not and could never harm or kill my family.”
The filing asks the court to vacate the judgment and sentences, among other possible forms of relief.
The LA Innocence Project also submitted an application seeking permission from the court to file the oversized petition, as it is in excess of the allowed 25,500 words.
The Court of Appeal said Monday that a decision on the application may take several days. If the application is granted, the court said it will then file the petition and lodge the exhibits. If the application is denied, it will reject the petition but may allow a shorter one to be filed.
The Stanislaus County District Attorney’s Office, which prosecuted the case, said it won’t comment on the petition until it is filed by the court and they read it.
Scott Peterson has previously appealed his conviction, claiming he received an unfair trial based on possible jury misconduct.
A judge denied him a new trial in 2022 following his appeal on stealth juror accusations.
Prosecutors and police who were involved in the original trial have stood behind the 2004 conviction.
Scott Peterson was initially sentenced to death for the murders. In 2020, the California Supreme Court overturned his death sentence, citing that his jury was improperly screened for bias against the death penalty, according to court documents. He was later resentenced to life in prison without parole.
Copyright © 2025, ABC Audio. All rights reserved.