welcome back to cnn newsroom. we continue to follow the breaking news of this shoot ing at two u.s. military facilities that s left four marines dead. the gunman, now identified as 24-year-old mohammad youssuf abdulazeez was killed by police. officials tell us that he was a naturalized u.s. citizen. he was born in kuwait and had jordanian citizenship. a friend said he visited the middle east several years ago but officials haven t found anything to tie him to an international terrorist organization but the investigation continues. president obama is calling on u.s. legislatures to reform america s criminal justice system. his comments came as he met with inmates and law enforcement officers at a federal prison in oklahoma on thursday. mr. obama is making prison reform one of his top domestic priorities before his time in office ends. we have to be able to distinguish between with