The director of a Moscow market where the roof collapsed, killing at least 58 people in Europe's second most deadly such accident this winter, has been detained, the chief city prosecutor said Friday. Prosecutor Anatoly Zuyev said the suspect, Mark Mishiyev, had been charged with negligence leading to deaths. He said prosecutors had ordered an analysis by explosives experts, and that a comprehensive construction analysis would follow. Officials earlier had said there was next to no chance that terrorism was involved in the roof collapse early Thursday. Doctors fought to save the lives of more than a dozen seriously injured victims of the collapse, and officials said there was virtually no hope of finding any more live people in the wreckage.