EE CLAIMED HE WAS PICKING UP ROCKS TO THROW OUT OF WALKWAY AND FELT A PAIN IN HIS LEFT ELBOW. HE WORKED UNTIL 12-5-02 WHEN HE WAS DISABLED. THERE WERE ISSUES INVOLVING THIS CAS THAT NEEDED FUR THER INVESTIGATION. ON 12-23-2002 IT WAS DETERMINEDS THAT THIS WAS WORK RELATED.