Johnny Johnson, who was executed Tuesday for the 2002 murder of a 6-year-old girl, is seen in this undated photo from Missouri Department of Corrections.
Mandatory Credit:	Missouri Department of Corrections via AP

Johnny Johnson, who was executed Tuesday for the 2002 murder of a 6-year-old girl, is seen in this undated photo from Missouri Department of Corrections.
Mandatory Credit: Missouri Department of Corrections via AP

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Missouri executes Johnny Johnson, convicted of murdering a 6-year-old girl, despite his claim he was mentally ill

Missouri has executed a death row inmate for the 2002 murder of a young girl over the objections of his attorneys, who argued he was mentally incompetent and thus ineligible to be put to death.