scholar Xiyue Wang has been imprisoned in Iran for more than two years since he was arrested on suspicions arising from the historical research he was doing. And Robert Levinson, a retired FBI agent, has not been heard of since he disappeared in 2007 while on a visit to Kish Island.for it. She also said a switchblade that officers accused Gray of carrying illegally was a legal pocket knife.

"I assured his family that no one is above the law and that I would pursue justice on their behalf," Mosby said at a press conference, where cheers went up when she announced the charges.

Gray, 25, died a week after his arrest. His was the latest case in a national debate about police tactics. In Baltimore, dozens of people were arrested during civil unrest on Monday night, including riots, looting and fires.

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Gov. Larry Hogan called for continued calm, and President Barack Obama said it was important for the people of Baltimore to get