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John Albert Gardner

John Albert Gardner

American double murderer
John Albert Gardner
The basics

Quick Facts

Intro American double murderer
Is Murderer
From United States of America
Type Crime
Gender male
Birth 9 April 1979, Culver City
Age 41 years
The details


John Albert Gardner III (born April 9, 1979) is an American convicted double murderer and sex offender. He confessed to the February 2009 rape and murder of 14-year-old Amber Dubois from Escondido, California, and the February 2010 rape and murder of 17-year-old Chelsea King from Poway, California, after he entered a plea agreement that spared him from the death penalty. Additionally, Gardner attempted to rape Candice Moncayo of San Diego County, and had been previously incarcerated for the molestation of a 13-year-old girl.

Early life

Gardner was born in Culver City, California. His parents divorced and Gardner frequently relocated around Southern California as a child (including Palmdale, California) and lived in Running Springs, California as a teenager. His mother Cathy Osborn was a psychiatric nurse and Gardner was put on psychiatric medication starting at age 6. He was held in a psychiatric hospital for 60 days at age 10 (in 1989).

As a student, Gardner was labeled "seriously emotionally disturbed." He graduated from Rim of the World High School in Lake Arrowhead, California in 1997 with a 3.2 grade point average and IQ of 113. He was also diagnosed with attention deficit hyperactivity disorder. He later said that his father was an alcoholic who beat him.

While in high school, Gardner worked odd jobs including as a lifeguard at a resort in Lake Arrowhead. As a teenager, he was convicted of trespassing at a high school. After graduating from high school, Gardner moved to San Diego and worked at a Big 5 Sporting Goods store.

Prior conviction

Gardner had been convicted in 2000 of molesting a 13-year-old female neighbor. He spent five years in prison and completed his parole in 2008, although it was determined that he had violated the terms of his parole seven times, including living too close to a school in 2007. Gardner was also investigated by his parole officer for possession of marijuana, though this incident was later dismissed.

He was also being tracked by a GPS anklet up until four months before the murder of Amber. He was too close to schools, in front of a daycare at one point, and also on prison grounds dropping off a friend according to the GPS data.


Gardner's first murder victim was 14-year-old Amber Dubois, who disappeared in February 2009. Her skeletal remains were later recovered by police in March 2010, after the police had questioned Gardner about her murder. Gardner had been arrested on February 28, 2010, in the Del Dios district of Escondido, California, when his DNA matched a DNA sample taken from the discarded clothing of Chelsea King, a senior from nearby Poway High School. King had disappeared on February 25, 2010, while she was jogging in the early evening at the Rancho Bernardo Community Park, near Lake Hodges. FBI divers found her body five days later (on March 2, 2010) buried in a shallow grave on the southeast corner of the lake's inlet, where some of her clothes had been found.

DNA evidence from King's clothing, along with a December 2009 attempted attack on a female jogger who managed to fight him off, led Escondido and San Diego police to patrol the area for a man fitting Gardner's description. He was arrested on February 28 at a bar and restaurant in Del Dios, at the western shore of Lake Hodges in Escondido. A witness has indicated that Gardner returned to the park subsequent to King's disappearance.

Guilty pleas

On April 16, 2010, Gardner pleaded guilty to the murder and rape of both Dubois (who disappeared on February 13, 2009, and whose skeletal remains were found on the grounds of the Pala, California Indian Reservation on March 6, 2010) and King in 2010, after the prosecutors agreed not to seek the death penalty. He admitted to kidnapping, raping, and stabbing Dubois. He also admitted dragging King to a remote area where he raped and strangled her, and then buried the body. In addition, Gardner also admitted and pleaded guilty to attempting to rape Candice Moncayo in December 2009, who was able to fight back and escape. Sentencing was set for June 1, 2010, although it took place on May 14, where Gardner was sentenced to two terms of life in prison without the possibility of parole.

The parents of Amber and Chelsea, and the surviving victim Candice Moncayo, made impact statements prior to sentencing describing the impact Gardner's crimes had on their lives, and their determination to see to it that "Chelsea's Law"-introduced by Assemblymen Nathan Fletcher –signed into California state law by then-Gov. Arnold Schwarzenegger on September 9, 2010–was passed to help prevent similar crimes in the future. During the trial, the Kings retained Michael Fell, a California criminal lawyer and former prosecutor, who specializes in representing victims under Marsy's Law, the state constitutional amendment that guarantees legal rights for victims of crime.


On May 14, 2010, Judge David Danielsen sentenced Gardner to life imprisonment with no possibility of parole, two terms of life imprisonment without parole for the murder and rape of Chelsea King and Amber Dubois, another term of 25 years to life for assault with attempt to commit a rape, and an additional 24 years of imprisonment for prior convictions. Since he entered the plea agreement, Gardner waived his right to appeal.

Gardner is currently incarcerated at Mule Creek State Prison.

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