MEXICO-MAYOR/KILLED

A photograph of Ricardo Guzman, mayor of La Piedad, is seen during his funeral service in La Piedad November 3, 2011. Guzman was shot to death on Wednesday while campaigning for President Felipe Calderon's sister in a governor's race for the state of Michoacan, local media and party officials said. REUTERS/Leovigildo Gonzalez (MEXICO - Tags: CRIME LAW POLITICS)