Witness sees Maui shark bite victim
Sources say Tsarnaev had no weapon in boat, officer injured at scene by "friendly fire."
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Tens of thousands of runners laced up their sneakers early Sunday morning for a grueling run through Oahu for the 41st annual Honolulu Marathon.
More than 90 heads of state are on their way to South Africa for what is expected to be the largest gathering of world leaders in Africa's history.