A Buddhist monk walks behind pictures of "yellow shirt" supporters of the People's Alliance for Democracy (PAD), who died during clashes in October 2008, during a commemoration for the clash in Bangkok October 7, 2011. Violent clashes between "yellow shirt" protesters and riot police saw two people killed and over 400 injured on October 7, 2008. REUTERS/Chaiwat Subprasom (THAILAND - Tags: CIVIL UNREST POLITICS OBITUARY ANNIVERSARY)