Police were searching for a man who prosecutors said possessed the largest, most graphic collection of child pornography that they had ever seen.
Donald Lemasters did not show up for his trial that was slated for Tuesday. A warrant was issued for his arrest.
Lemasters, 44, was charged last year with 15 counts of pandering sexually oriented materials involving minors, nine counts of possessing sexually oriented material involving minors and one count of possession of criminal tools.
Investigators last year seized numerous DVDs along with his computer and sent them to the Ohio Bureau of Criminal Identification and Investigation for analysis.
Investigation revealed images of children and infants involved in sexual acts, including bestiality.
Anyone with information about Lemasters is asked to call the London Police Department at 740-852-1414.
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August 23, 2011: Man Accused Of Owning More Than 170,000 Child Porn Images