John Marek , 53 , was killed when the roof of the mine collapsed . `` Words can not express the deep sorrow we feel at the tragic loss of our friend , colleague and 30-year veteran of the mining industry . He was a 12-year employee of Phoenix Coal Company . The cause of the collapse has not been determined .
John Marek , 53 , was killed when the roof of the mine collapsed . He was a 12-year employee of Phoenix Coal Company . The cause of the collapse has not been determined .