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FBI Special Agent John Whiteside served the Bureau from 1971 until his retirement in 2001. As the case agent for the Lipka investigation, he was involved in all aspects of the case, from the beginning of the investigation in 1992 to Lipka's 1997 conviction. He decided to tell the story following the deaths of two key witnesses in the case. Mr. Whiteside continues to provide counterintelligence consulting to the U.S. Government, and currently resides in Chester County, Pennsylvania.