Scott Peterson Murder Case

On December 24, 2002, Laci Denise Peterson, a 27-year-old woman who was eight months pregnant with her first child, vanished from the home she shared with her husband, Scott Lee Peterson, in Modesto, California ^[1][2]. Scott told police he had left that morning to go fishing alone at the Berkeley Marina on San Francisco Bay, and returned home to find Laci missing ^[1][3]. The disappearance immediately drew intense local and then national media attention, as friends and family described Laci as a vibrant, outgoing woman eagerly anticipating the birth of her son, whom the couple had already named Conner ^[1].

The initial search effort was massive. Thousands of volunteers joined organized searches across the Modesto area, and the case dominated cable news coverage throughout the winter of 2002-2003 ^[1][2]. Investigators grew suspicious of Scott Peterson early in the investigation. Detectives Allen Brocchini and Jon Buehler noted inconsistencies in his statements and discovered that he had purchased a 14-foot aluminum boat just two weeks before Laci's disappearance, a purchase he had not mentioned to family or friends ^[1][4].

On January 24, 2003, the case took a dramatic turn when Amber Frey, a Fresno massage therapist, came forward at a police news conference and revealed that she had been involved in a romantic relationship with Scott Peterson since November 20, 2002 ^[1][2][4]. Frey stated that Peterson had told her he was unmarried, and that he had called her on New Year's Eve claiming to be celebrating in Paris when he was actually at a vigil for his missing wife in Modesto ^[1][4]. Frey subsequently agreed to cooperate with police and recorded dozens of phone conversations with Peterson, recordings that would later become critical evidence at trial ^[1][3].

On March 5, 2003, the Modesto Police Department reclassified the case from a missing person investigation to a homicide ^[4]. Then, on April 13, 2003, the remains of a male fetus washed ashore on a tidal flat along the San Francisco Bay ^[1][2]. The following day, April 14, 2003, a woman's torso was discovered along the Point Isabel shoreline, not far from the Berkeley Marina where Scott had claimed to be fishing on the day Laci disappeared ^[1][2]. On April 18, 2003, DNA testing confirmed the remains belonged to Laci and Conner Peterson ^[1]. That same day, police arrested Scott Peterson near the Torrey Pines Golf Course in La Jolla, San Diego County ^[1][2]. At the time of his arrest, Peterson had dyed his hair blond and his vehicle contained approximately $15,000 in cash, multiple cell phones, camping equipment, two driver's licenses, and Viagra ^[1][4].

Scott Peterson was arraigned on April 21, 2003, on two felony counts of murder with premeditation and special circumstances ^[1][2]. He entered a plea of not guilty. Celebrity defense attorney Mark Geragos joined the defense team shortly afterward ^[1][4]. Due to extensive pretrial publicity, the trial was moved from Stanislaus County to San Mateo County on January 20, 2004 ^[1][2][3].

The trial began on June 1, 2004, before Judge Alfred Delucchi ^[1][2]. Lead prosecutor Rick Distaso presented a largely circumstantial case, as no murder weapon, crime scene, or cause of death was ever established ^[1][3][4]. The prosecution's theory was that Scott had killed Laci in their home, transported her body in the boat he had recently purchased, and used homemade concrete anchors to weigh down her remains before disposing of them in the San Francisco Bay ^[1]. Physical evidence included a single strand of hair found wrapped around pliers in Scott's boat that was matched to Laci through mitochondrial DNA testing, and five circular marks consistent with bucket-sized molds found in Scott's warehouse, suggesting multiple concrete anchors had been manufactured though only one was recovered ^[1].

Amber Frey's testimony, which began on August 10, 2004, proved devastating to the defense ^[1][4]. Jurors heard recorded phone calls in which Peterson told Frey he had "lost his wife" before Laci was even reported missing, and lied about his whereabouts on multiple occasions ^[1][4]. The prosecution argued that Peterson's motive was to escape the responsibilities of marriage and impending fatherhood in order to pursue his relationship with Frey ^[1][3].

On November 12, 2004, after nearly six months of testimony and several weeks of deliberation, the jury found Scott Peterson guilty of first-degree murder with special circumstances in the death of Laci Peterson, and second-degree murder in the death of Conner ^[1][2][3][5]. On December 13, 2004, the same jury recommended the death penalty ^[1][2]. Judge Delucchi formally imposed the death sentence on March 16, 2005, and Peterson was transferred to San Quentin State Prison's death row ^[1][2].

The case had broader legislative impact as well. On April 1, 2004, President George W. Bush signed the Unborn Victims of Violence Act, colloquially known as "Laci and Conner's Law," which recognized the killing of an unborn child as a separate federal crime ^[1].

Peterson's case wound through the appellate system for years. On August 24, 2020, the California Supreme Court issued a unanimous 7-0 ruling that upheld Peterson's murder conviction but overturned his death sentence ^[1][2][5]. Justice Leondra Kruger wrote that the trial court had improperly dismissed prospective jurors who expressed general opposition to the death penalty but could still have served fairly during the penalty phase ^[1][5]. On December 8, 2021, Judge Anne-Christine Massullo resentenced Peterson to life in prison without the possibility of parole for the first-degree murder of Laci, with a concurrent 15-year-to-life sentence for the second-degree murder of Conner ^[1][2][5].

In December 2022, Judge Massullo also denied a separate habeas corpus petition that had alleged misconduct by Juror No. 7, Richelle Nice, who had failed to disclose during jury selection that she had previously been the victim of domestic violence and had obtained a restraining order ^[1][6]. The judge ruled the omission did not constitute grounds for a new trial ^[1].

In October 2022, Peterson was transferred from San Quentin to Mule Creek State Prison in Ione, California, where he remains incarcerated ^[1][2]. In January 2024, the Los Angeles Innocence Project, a nonprofit organization independent of the national Innocence Project, took up Peterson's case ^[1][5][7]. On January 18, 2024, the LAIP filed motions seeking DNA testing and post-conviction discovery ^[7]. In May 2024, a judge granted DNA testing on a single item: a piece of duct tape found on the pants Laci was wearing when her remains were recovered ^[1][6]. On April 18, 2025, the LAIP filed a nearly 400-page habeas corpus petition with the California Court of Appeals, arguing that exculpatory evidence had been suppressed or destroyed, that police had engaged in tunnel vision, and presenting scientific analysis suggesting the timing and location of the body disposal differed from the prosecution's theory ^[8]. On June 2, 2025, the appeals court denied the petition ^[1].

Charges and Arraignment

On April 21, 2003, Scott Lee Peterson was arraigned in Stanislaus County Superior Court on two felony counts of murder with premeditation and special circumstances: one count of first-degree murder for the killing of his wife, Laci Denise Peterson, and one count of murder for the killing of their unborn son, Conner Peterson [L1][L2]. The special circumstances allegation made Peterson eligible for the death penalty under California law. Peterson entered a plea of not guilty to all charges [L1].

Change of Venue and Trial

Due to pervasive pretrial media coverage in Stanislaus County, the defense successfully moved for a change of venue. On January 20, 2004, the case was transferred to San Mateo County Superior Court, approximately 90 miles from the Petersons' Modesto home [L1][L2][L3]. The trial commenced on June 1, 2004, before Judge Alfred Delucchi [L1][L2].

The prosecution, led by Stanislaus County Deputy District Attorney Rick Distaso, presented a circumstantial case over the course of nearly six months [L1][L3]. No murder weapon was ever recovered, no crime scene was identified, and the cause of Laci Peterson's death was never definitively established by the medical examiner [L1][L3][L4]. The prosecution's theory rested on the convergence of physical evidence, including a hair consistent with Laci's found in Scott's fishing boat, homemade concrete anchors, and the proximity of where the remains washed ashore to Scott's claimed fishing location at the Berkeley Marina [L1].

The defense, led by attorney Mark Geragos, argued that Laci had been abducted while walking the family dog and that the real perpetrators may have been connected to a burglary that occurred in the Petersons' neighborhood around the same time [L1][L4]. Geragos contended that Scott Peterson was the victim of a rush to judgment driven by media pressure and public hostility [L1].

Conviction and Sentencing

On November 12, 2004, the jury returned a verdict of guilty on both counts: first-degree murder with special circumstances for the killing of Laci Peterson, and second-degree murder for the killing of Conner Peterson [L1][L2][L3]. During the penalty phase, on December 13, 2004, the jury unanimously recommended the death sentence [L1][L2]. On March 16, 2005, Judge Delucchi formally sentenced Peterson to death by lethal injection, and he was transferred to death row at San Quentin State Prison [L1][L2].

Direct Appeal and Death Sentence Reversal

Peterson's automatic appeal to the California Supreme Court proceeded over many years. On August 24, 2020, the court issued a unanimous 7-0 decision in People v. Peterson that affirmed Peterson's murder conviction on all counts but reversed his death sentence [L1][L2][L5]. Writing for the court, Justice Leondra Kruger held that the trial court had committed reversible error during jury selection for the penalty phase by improperly excusing prospective jurors who had expressed general reservations about capital punishment but had not demonstrated an inability to follow the law and consider imposing it [L1][L5]. The court distinguished between jurors whose views would substantially impair their duties and those who merely held personal opposition to the death penalty, finding the trial court had conflated the two standards [L1].

Resentencing

Following remand, on December 8, 2021, Judge Anne-Christine Massullo of the San Mateo County Superior Court resentenced Peterson to life in prison without the possibility of parole for the first-degree murder of Laci Peterson, with a concurrent sentence of 15 years to life for the second-degree murder of Conner Peterson [L1][L2][L5].

Habeas Corpus Proceedings and Juror Misconduct Claims

Peterson filed a habeas corpus petition in November 2015 alleging, among other grounds, juror misconduct [L1]. The petition focused on Juror No. 7, Richelle Nice, who had failed to disclose during voir dire that she had been the victim of domestic violence and had obtained a restraining order against a former partner [L1][L5]. The State filed a 150-page opposition in August 2017, arguing the evidence of guilt was overwhelming [L1]. On December 20, 2022, Judge Massullo denied the habeas petition, ruling that Nice's nondisclosure did not constitute prejudicial misconduct warranting a new trial [L1].

Los Angeles Innocence Project Involvement

In January 2024, the Los Angeles Innocence Project, a nonprofit legal organization independent of the national Innocence Project, began representing Peterson and filed motions seeking post-conviction DNA testing and discovery on January 18, 2024 [L1][L6][L7]. In May 2024, a judge granted DNA testing on one item of evidence: a piece of duct tape recovered from the pants Laci Peterson was wearing when her remains were found [L1][L8]. On October 7, 2024, the court granted Peterson's defense team access to previously undisclosed evidence for post-conviction review [L1].

On April 18, 2025, the LAIP filed a nearly 400-page habeas corpus petition with the California Court of Appeals, arguing that exculpatory evidence had been suppressed or destroyed, that police had suffered from tunnel vision after identifying Peterson as their prime suspect, and presenting new scientific analysis regarding the timing of the unborn child's death and water movement patterns in the Bay [L9]. LAIP Director Paula Mitchell stated the organization believed that once police focused on Peterson, they lost interest in pursuing alternative suspects [L9]. On June 2, 2025, the California Court of Appeals denied the petition [L1].

Current Status

Scott Peterson remains incarcerated at Mule Creek State Prison in Ione, California, serving a sentence of life without the possibility of parole [L1][L2]. His conviction has been upheld through multiple rounds of appellate and habeas review. The LAIP continues to represent Peterson and has indicated it may pursue further legal avenues [L9].