Search teams found the bodies of four men missing almost a week since an explosion rocked a West Virginia coal mine, bringing the death toll to 29 in the worst U.S. mining disaster in a generation. Crews who held out hope that survivors might have made it to an airtight chamber awaiting rescue instead discovered their bodies Friday in the Upper Big Branch Mine instead, officials said. «We did not receive the miracle that we prayed for,» Gov. Joe Manchin said early Saturday. «So this journey has ended and now the healing will start.» The federal mine agency has appointed a team of investigators to look into the blast, which officials said may have been caused by a buildup of methane. President Barack Obama said he wants a report by next week.