29 miners were killed in an explosion last night . Davitt McAteer named by West Virginia governor to conduct investigation . Managers of two pension funds have called on Massey 's board to oust Blankenship , who has been critical of mining regulations in the past . ` The fire was the worst in the United States since 1972 .
29 miners were killed in an explosion last night . Davitt McAteer named by West Virginia governor to conduct investigation . The fire was the worst in the United States since 1972 .