The criminal Joseph E. Duncan III died at the age of 58. Here is all you want to know, and more!
Biography - A Short Wiki
Serial killer sentenced to death for murdering four members of the Groene family, and 1-3 others.
He did not marry before his conviction.
How did Joseph E. Duncan III die?
Joseph Edward Duncan died at the medical center near United States Penitentiary, Terre Haute, where he was on death row, according to a statement from prosecutors in Riverside County, California.