EE WAS PINNING TOP ON 3-20-00 AND A PIECE OF DRAW ROCK FELL AND HIT HIM ACROSS SHOULDERS AND BACK. EE CONTINUED TO WORK THROUGHOUT THIS PARTICULAR SHIFT AND UP TO 4/13/00 WHICH WAS HIS LAST SH IFT WORKED. ON 4-14-00 EE WENT TO THE DR. BECAUSE OF CONTINUED PAIN FROM THE ROCK THAT STRUCK HIM ON 3-20-00.