Joseph E. Duncan III

Joseph E. Duncan III

Joseph Edward Duncan III (born February 25, 1963) is an American convicted serial killer and sex offender who is currently serving multiple death sentences and life sentences in conjunction with the 1997 kidnapping and murder of Anthony Martinez of Beaumont, California, and the 2005 kidnapping and murders of members of the Groene family of Coeur d'Alene, Idaho. He has also confessed but not been charged with the 1996 murder of two girls in Seattle, Washington.

Born in Tacoma, Washington, Duncan's lengthy criminal history dates to when he was 15 years old. In 1980, he was sentenced to 20 years in prison for sexually assaulting a boy in Tacoma and as a result has spent most of his adult life in prison. He was paroled in 1994 but was returned to prison in 1997 for violating the terms of his parole.

In May 2005, Kootenai County, Idaho authorities discovered the bodies of Brenda Groene, her boyfriend, and her 13-year-old son in the family home near Coeur d'Alene. Authorities also noted that Groene's two other children were missing: Shasta, 8, and Dylan, 9. After an intense search for the two children, Shasta was found alive with Duncan at a restaurant in Coeur d'Alene nearly seven weeks later, and Duncan was arrested in conjunction with her kidnapping. Dylan's remains were found days later in a remote area near St. Regis, Montana. Duncan was subsequently charged with murdering Dylan as well as the three victims at the Coeur d'Alene home.

During his incarceration, authorities connected Duncan with the unsolved murders of Anthony Martinez in California and two girls in Seattle, all of which occurred during Duncan's parole from 1994–1997. Of those murders, Duncan has only been charged in the California case. In all, Duncan has been convicted in Idaho for kidnapping and murdering the three victims in Coeur d'Alene, for which he was given six life sentences; in federal court for kidnapping Shasta and Dylan Groene and murdering Dylan, for which he was given three death sentences; and in the state of California for kidnapping and murdering Martinez, for which he was given two life sentences. He is currently incarcerated on death row at the United States Penitentiary, Terre Haute in Indiana.

Read more about Joseph E. Duncan III:  Early Criminal History, Idaho Murders and Kidnappings, Other Crimes, Trials, "The Fifth Nail" and "Fifth Nail Revelations"

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