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.".
Mohamed and Mohammed are not the same person.
Mohamed is the ambassador and Mohammed is the engineering student.  They are different people.
( z1 same :polarity - :ARG1 ( z2 person :name ( z3 name :op "Mohamed" ) ) :ARG2 z2 )