CHRISTINE ROMANS, CNN BUSINESS CORRESPONDENT: This just in to CNN. An FBI agent shot and killed a suspect in Florida who knew Boston bombing suspect, Tamerlan Tsavraev. According to our affiliate, Central Florida News 13, the agent was apparently conducting official duties in Orlando when the man was shot and killed. We're going to bring you more information throughout the morning as it becomes available. Developing this morning in the investigation into the deadly attack on U.S. diplomats in Benghazi, Libya. A senior Republican lawmaker tells CNN that investigators now have names to go along with the photos of people who may have been involved in that attack. The lawmaker could not say how many people have been identified. At a Congressional hearing last week, attorney general, Eric Holder, hinted that there were new definitive and concrete developments. "Minding Your Business" this morning, another record high for stocks. The gains for the year have been impressive now, folks. Dow, S&P; 500 both up 17 percent in 2013. The NASDAQ, up 15 percent. And in Washington, a grilling for Apple CEO, Tim Cook, accused by a Senate panel of using every means necessary to avoid paying billions dollars in -- billions of dollars in taxes. Senator Carl Levin says apple has sought, quote, "the holy grail of tax avoidance" offshore corporations who don't pay taxes in any country. Tim Cook defends his company.</s>TIM COOK, APPLE CEO: We pay all the taxes we owe, every single dollar. We not only comply with the laws, but we comply with the spirit of the laws.</s>ROMANS: Some on the committee noted the irony of Congress criticizing Apple for using some of the legal loopholes Congress, itself, created. Others applauded Apple's ingenuity and praised its products. Back now to Chris and John in Oklahoma.</s>CUOMO: All right. Thanks, Christine. Coming up here on the special edition of STARTING POINT, for some, it was literally the difference between life and death, but why are Oklahoma homes and facilities not equipped with storm shelters? That's the big question here. We're going to go inside one after the break.
FBI Agent Killed Friend of Boston Marathon Suspect After Questioning; Benghazi Attack Investigation