Mohamed al-Sumaidaie, Iraq's ambassador to the United Nations, accused U.S. marines of murdering his cousin's 21-year-old son, Mohammed Sumaidaie, who was studying engineering at the University of Technology in Baghdad. "All indications point to a killing of an unarmed innocent civilian - a cold-blooded murder," said Sumaidaie. "The Marines were smiling at each other as they were leaving.".
The 21 year old attacked the marines. 
( z1 attack :ARG0 ( z2 person :age ( z3 temporal-quantity :quant 21 :unit ( z4 year ) ) ) :ARG1 ( z5 military :name ( z6 name :op "Marines" ) ) )