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The son of one of "the drifters", William Shifflett, shares his father had type O blood. The DNA evidence revealed in 2009 suggested two unidentified men may have bled at the crime scene. One of those men had type O blood, according to experts. Could it be a match? With Bedford County officials refusing to retest crime scene evidence, the investigation has remained at a stalemate. But a new path to DNA testing is forged through the Small Town Big Crime investigation.\\xa0