Edited sentence: From the deliberate way in which the letter had been written, she deduced that Best was writing to instruction: a theory that allowed McKenzie to speculate that T.In 2009 Kelvin McKenzie, a retired newspaper editor, subjected the "Dear Boss" letter to handwriting analysis from graphologist Elaine Quigley.O'Connor, Best's editor, was complicit in order to increase the circulation of his paper, The Star.She demonstrated, by placing a transparent copy of a known sample of Best's handwriting over the letter, that he was almost certainly the author