The driver of a tractor-trailer dump druck had a heart attack, crossed the center line and side swipped another dump truck on Rt. 173 west of Rt. 59 in Antioch. The two trucks ended up a few 100 yards from each other. Several cars headed for the hills as the truck shot down the road out of control. Wildwood Service was called to the scene to recover the Peterbuilt and Northern Illinois Mack was called to recover there customers Mack.