Mourners holding yellow balloons take part in the first anniversary of the death of former South Korean President Roh Moo-hyun at Seoul City Hall Plaza May 23, 2010. Thousands of people mourned former President Roh who jumped to his death in 2009 from a cliff overlooking his rural home after being implicated in a swirling corruption scandal that tainted his reformer image. The yellow colour is the symbolic colour of Roh. REUTERS/Jo Yong-Hak (SOUTH KOREA - Tags: POLITICS OBITUARY)