EMPLOYEE WAS PERFORMING HIS NORMAL JOB DUTIES WITH SEVERAL OTHER EMPLOYEES. WHILE SHOVELING COAL ON THE OFF-WALKWAY SIDE OF THE BELT OUTBY THE STAGELOADER, THE EMPLOYEE FELL TO THE GROUND. THE OTHER EMPLOYEES STATED HE WAS UNCONSCIOUS AND STARTED PERFORMING CPR. HE NEVER REGAINED CONSCIOUSNESS AND WAS LATER PRONOUNCED DEAD. THE APPARENT HEART ATTACK DOESN'T APPEAR TO BE WORK-RELAT