EE HAD JUST ARRIVED FOR WORK AND HAD TOLD WITNESS THAT HIS SHOULDER WAS HURTING AND HE MAY GO HOME. WITNESS WAS AT HIS LOCKER WHEN HE HEARD A CRASH AND HE SAW EE ON THE FLOOR. EMTS WERE IN IMM OGIATE NEARBY MINE BLDG. BUT COULDN'T RECEIVED EE. LATER REPORT WAS MASSIVE HEART FAILURE AND DEATH WAS INSTANT. AWAITING AUTOPSY AND DEATH CERTIFICATE.