Terry Dickson reports for the Florida Times-Union that polygraph operator Kenneth E. Blackstone of Atlanta, Georgia is under investigation for perjury in connection with a death penalty murder case: Guy Heinze Jr.’s polygraph examiner under investigation for truthfulness in court Posted: July 18, 2013 – 9:01pm  |  Updated: July 18, 2013 – 9:14pm By Terry …

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