NEED TO KNOW

Christopher Revak, who died by suicide in 2009, is believed to be the person responsible for the 2006 death of Deidre Harm, 21, in Wisconsin

Revak has been named a person of interest in the 1995 disappearance of Iowa news anchor Jodi Husentruit, 27

He was a suspect in the disappearance and presumed murder of Rene Williams, 36, a mother of three from Missouri

A person of interest in the 1995 disappearance of a beloved news anchor and another woman in 2007 is also the man responsible for the 2006 murder of a 21-year-old woman in Wisconsin, authorities say.

Christopher Revak died by suicide in a Missouri jail cell on July 26, 2009, the day after he was charged with second-degree murder for the March 2007 murder of Rene Williams, 36, a mother of three from Mansfield, police

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