I believe after long dicussion with a driver right behind at the time of the accident, he had a heart attach. He vered to the left before the oval entry and went straight up across the apron, across the oval and into the wall. His brake lights were on but he did not slow down. He was apparently in poor physical condition at the time. His death is trajic but I think it should tells us all to make sure we are in good health before we hit the track. The stress and heat we endure racing is extreme.