Scott Peterson

Scott Lee Peterson was born on October 24, 1972, in San Diego, California. He was the youngest child of Lee and Jackie Peterson and grew up in a middle-class family. Peterson was an accomplished golfer during his youth and briefly attended Arizona State University on a golf scholarship before transferring to California Polytechnic State University (Cal Poly) in San Luis Obispo.

While attending Cal Poly, Peterson met Laci Rocha. The couple married in 1997 and later settled in Modesto, California, where Scott operated a small agricultural fertiliser business. Friends and family generally described the marriage as stable, and in 2002 the couple announced they were expecting their first child, a son they planned to name Conner.

Behind the public image, however, Peterson had accumulated financial pressures and was engaging in an affair with massage therapist Amber Frey. Prosecutors later argued that Peterson viewed his impending fatherhood and marriage as burdens he wished to escape.

On December 24, 2002, Scott Peterson reported that his 27-year-old pregnant wife, Laci, had disappeared from their Modesto home after he returned from a solo fishing trip to Berkeley Marina on San Francisco Bay.

The disappearance immediately generated extensive media attention and one of California's largest missing-person searches. Peterson gave numerous media interviews appealing for Laci's return while family members, volunteers and law enforcement searched throughout Northern California.

During the investigation, detectives learned Peterson had begun a romantic relationship with Amber Frey before Laci disappeared. Frey cooperated with investigators by secretly recording telephone conversations in which Peterson falsely claimed he was travelling and spending holidays overseas, despite participating in public searches for his missing wife.

On April 13 and 14, 2003, the decomposed remains of a late-term male fetus and the body of Laci Peterson were discovered separately along the shoreline of San Francisco Bay near Brooks Island close to the area where Peterson admitted launching his fishing boat on the day of her disappearance.

Prosecutors argued that Peterson murdered Laci inside their Modesto home before transporting her body in his pickup truck to Berkeley Marina. Evidence showed he had purchased a small fishing boat shortly before the murder without informing family members and had constructed homemade concrete anchors.

Although the exact cause of Laci's death could not be determined because of decomposition, prosecutors alleged Peterson weighted her body before disposing of it in San Francisco Bay. The recovery locations of Laci and Conner closely matched the area where Peterson acknowledged fishing on Christmas Eve.

The prosecution relied upon extensive circumstantial evidence, including Peterson's inconsistent statements, deceptive behaviour, financial activity, affair with Amber Frey and forensic evidence linking his boat and warehouse to the disposal of the body.

As investigators focused increasingly on Peterson, surveillance teams monitored his activities while forensic specialists examined his home, vehicles, warehouse and boat.

On April 18, 2003, Peterson was arrested near a golf course in La Jolla, California, not far from the Mexican border. He was carrying multiple mobile phones, camping equipment, large amounts of cash, his brother's identification, survival supplies and changed his appearance by dyeing his hair and growing a beard. Prosecutors argued these circumstances suggested he was preparing to flee, while the defence disputed that interpretation.

Peterson was charged with two counts of murder shortly after the recovery of Laci and Conner's remains.

Peterson's trial was moved from Stanislaus County to San Mateo County because of extraordinary pretrial publicity. Proceedings began in 2004 and became one of the most closely followed criminal trials in the United States.

Prosecutors presented a comprehensive circumstantial case, arguing Peterson carefully planned Laci's murder to free himself from family responsibilities and continue his relationship with Amber Frey. The prosecution relied upon Peterson's lies to investigators, telephone recordings with Frey, forensic evidence, financial records, witness testimony and the discovery of the victims' remains near the location of his fishing trip.

The defence argued there was no direct evidence proving Peterson committed the murders and suggested Laci may have been abducted after leaving home. Defence lawyers challenged the prosecution's timeline and interpretation of the circumstantial evidence.

On November 12, 2004, the jury convicted Peterson of first-degree murder for the death of Laci Peterson and second-degree murder for the death of Conner Peterson. The jury subsequently recommended the death penalty.

In 2005, Peterson was formally sentenced to death by lethal injection. In 2020, the California Supreme Court overturned the death sentence because of errors during jury selection but upheld the murder convictions. Following further proceedings, Peterson was resentenced in December 2021 to life imprisonment without the possibility of parole, where he remains incarcerated.

The Peterson case became one of the most publicised homicide investigations in modern American history. National media followed the search for Laci almost daily, while Peterson's affair with Amber Frey dramatically altered public perception after recordings revealed he had lied to her about being a widower before Laci disappeared.

The murders generated widespread discussion concerning circumstantial evidence in criminal trials. Although no eyewitnesses or confession linked Peterson directly to the killing, prosecutors successfully argued that the cumulative evidence overwhelmingly demonstrated his guilt. Courts have consistently upheld the murder convictions despite numerous appeals.

The case has remained the subject of continuing documentaries, books and legal analysis. Peterson has maintained his innocence throughout his imprisonment, while Laci Peterson's family has continued advocating for victims of violent crime and raising awareness of domestic homicide involving pregnant women.

• Modesto Police Department
• Stanislaus County District Attorney's Office
• California Supreme Court
• California court records
• Associated Press
• CBS News
• ABC News
• NBC News