The Fourth Circuit recently issued a decision prohibiting retrial of a defendant charged with murder following a mistrial. The government obtained the mistrial over the defendant’s objection when a key witness could not be located during the trial. On appeal, the Fourth Circuit found that no manifest necessity justified the mistrial and that double jeopardy prohibited another attempt by the government to convict the defendant. I previously wrote about mistrials and double jeopardy here, and I wanted to flag this case for readers for its treatment of missing witnesses in the mistrial context. The case is Seay v. Cannon, ___ F.3d ___, 2019 WL 2552953 (4th Cir., June 21, 2019).