Jon Dunkle
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Jon Scott Dunkle (born October 11, 1960), known as The Peninsula Serial Killer, is an American
serial killer A serial killer (also called a serial murderer) is a person who murders three or more people,An offender can be anyone: * * * * * (This source only requires two people) with the killings taking place over a significant period of time in separat ...
who murdered three young boys in
Belmont, California Belmont is a city in San Mateo County in the U.S. state of California. It is in the San Francisco Bay Area, on the San Francisco Peninsula about halfway between San Francisco and San Jose. It was originally part of Rancho de las Pulgas, f ...
between 1981 and 1985. Dunkle was convicted of two of the murders in 1989 and was sentenced to death early the following year. Dunkle received an additional sentence of life imprisonment without the possibility of parole in 1994 after pleading guilty to a 1985 murder. In addition to the three boys that were murdered, Dunkle assaulted numerous other boys and was arrested for other crimes, including burglaries and hit-and-run incidents.


Murders

On November 8, 1981, John Thomas Davies, 15, disappeared from his Belmont home. Following Davies' disappearance, his family became advocates for missing, abused, and exploited children. They helped establish the Violent Crimes Information Center, which provided law enforcement agencies a network to share their resources. On November 5, 1982, Steve Murphy was hit by a car while walking home from a party. He was then placed in the trunk of the car, driven to a remote area of Belmont, and dumped in a ravine. The following month, on December 31, 1982, Dunkle struck Monte Hansen, 15, with a two-by-four board at his San Mateo home. Both Murphy and Hansen survived. On October 2, 1984, 12-year-old Lance Turner was found dead near Water Dog Lake in Belmont, having been stabbed 23 times. On November 19, Turner's grandmother received a phone call from an unidentified man stating, "I'm sorry, I'm sorry -- should I do it again -- I'm sorry, really sorry." On July 2, 1985, 12-year-old Sean Gregory Dannehl disappeared while riding his bike in Fair Oaks. His body was found six days later, near the south side of the
American River The American River is a List of rivers of California, river in California that runs from the Sierra Nevada (U.S.), Sierra Nevada mountain range to its confluence with the Sacramento River in downtown Sacramento. Via the Sacramento River, it ...
. During Dunkle's trial, it was revealed that Dannehl was forced to remove his clothing before he was stabbed in the chest and throat. After Dannehl was dead, Dunkle stabbed him once in each eye.


Arrest and convictions

Dunkle was arrested for burglary on April 4, 1985, after he was seen entering a home in
Rancho Cordova Rancho Cordova is a city in Sacramento County, California, United States. Incorporated in 2003, it is part of the Sacramento Metropolitan Area. The population was 79,332 at the 2020 census. In 2010 and 2019, Rancho Cordova received the All-Ame ...
while under surveillance by the police department. In November, Dunkle was charged with felony hit-and-run after a transcript of a conversation between an undercover Belmont police officer and Dunkle was released, in which he admitted to being responsible for the incident involving Steve Murphy three years earlier. For the burglary, Dunkle was sentenced to six years in prison, the maximum sentence, due to aggravated factors including four convictions for drunk driving, two hit-and-run incidents, and probation violations. On December 7, 1989, Dunkle was found guilty of first-degree murder in the fatal stabbings of John Davies and Lance Turner. He was sentenced to death via the
gas chamber A gas chamber is an apparatus for killing humans or animals with gas, consisting of a sealed chamber into which a poisonous or asphyxiant gas is introduced. Poisonous agents used include hydrogen cyanide and carbon monoxide. History Donatie ...
on January 10, 1990. Nearly five years later, on December 30, 1994, Dunkle was sentenced to life imprisonment without parole for the murder of Sean Dannehl.


Imprisonment

Dunkle has been diagnosed with
schizophrenia Schizophrenia () is a mental disorder characterized variously by hallucinations (typically, Auditory hallucination#Schizophrenia, hearing voices), delusions, thought disorder, disorganized thinking and behavior, and Reduced affect display, f ...
. In 2016,
The Los Angeles Times The ''Los Angeles Times'' is an American daily newspaper that began publishing in Los Angeles, California, in 1881. Based in the Greater Los Angeles city of El Segundo since 2018, it is the sixth-largest newspaper in the U.S. and the larges ...
reported that Dunkle had been described as "gravely disabled", frequently banged his head against the wall, and was "said to believe he is controlled by computer chips and dies at night to become a new being." Dunkle was appointed a
legal guardian A legal guardian is a person who has been appointed by a court or otherwise has the legal authority (and the corresponding duty) to make decisions relevant to the personal and property interests of another person who is deemed incompetent, ca ...
in 2002. On August 4, 2005, the Supreme Court voted unanimously to affirm Dunkle's death sentence.


See also

*
List of serial killers in the United States A serial killer is typically a person who kills three or more people, with the murders taking place over more than a month and including a significant period of time between them. The Federal Bureau of Investigation (FBI) defines serial murder a ...
*
Capital punishment in California Capital punishment is not allowed to be carried out in the U.S. state of California due to a standing 2006 federal court order against the practice and a 2019 moratorium on executions ordered by Governor Gavin Newsom. The litigation resulting i ...
* John Joubert


References

{{DEFAULTSORT:Dunkle, Jon 1960 births 1981 murders in the United States 1985 murders in the United States 20th-century American criminals American male criminals American murderers of children American people convicted of murder American prisoners sentenced to death American prisoners sentenced to life imprisonment People convicted of murder by California Criminals from Los Angeles People with schizophrenia Prisoners sentenced to death by California Serial killers from California Living people