Samuel Dieteman, is shown in this Aug. 4, 2006, file photo provided by the Maricopa County Sheriff's Office. Dieteman, one of two suspects charged in a series of random shootings that killed seven people in the Phoenix area over a 14-month period, pleaded guilty Friday, April 4, 2008, to two counts of first-degree murder. He also pleaded guilty to one count of conspiracy to commit murder. (AP Photo/Maricopa County Sheriff's Office, File)

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