not to be confused with the Madison Correctional Institution, Madison, Florida
The Madison Correctional Institution (MaCI) is a state prison for men located in London, Madison County, Ohio. First opened in 1987, the facility has a working population of 2258 inmates, with a mix of security levels (minimum, medium, close, and a few max and super max).
The facility is less than a mile from another Ohio state prison, London Correctional Institution.
Notable inmates Inmate NameInmate NumberStatusDetailsChad SouthA684079Died in prison while serving a sentence of life with the possibility of parole after 28 years.South was hired to kill a "Daniel Ott" and proceeded to do so except he killed the wrong Daniel Ott in 2006.Damico WatkinsA299646Died in prison while serving a sentence of 5 to 25 years for aggravated robbery.Watkins was killed by a group of white inmates who were part of the prison's Aryan Brotherhood gang.David CarrollA546573Serving a sentence of life with the possibility of parole after 15 years.Assisted in the murder of 3-year-old Marcus Fiesel while he was in his foster custody.Stephen BeightlerA748937Present at facility from February 2019 to November 2019Former model convicted of felonious assault, sentenced to 8 years"STEPHEN A BEIGHTLER -VS- OHIO DEPT OF REHAB AND CORR", Franklin County Clerk of Courts. 2019. COMPLAINT FOR WRIT OF MANDAMUS. Retrieved 3 July 2026
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