So I was driving down the interstate in a rural area at about 12:30 AM in a semi truck about 9 minutes from our truck yard, and I hear on the cb "there is a car going the wrong way on the interstate". I find out the car is going eastbound in the westbound lane, which means it was coming my direction. Just then I see the car... then it ran head on into a semi truck. It was about 1/2 mile ahead of me. I slow and come to a stop, both lanes are blocked and debris is everywhere. It is hard to describe the condition of the car. There was nothing left of it. I was the first vehicle in line and was about 50 feet from the truck and car. The car had disintegrated and there was no (human) body... just parts laying everywhere. I had to sit there for 2 hours and 20 minutes while they (cops, firefighters) did their thing and cleared the road enough for us to get by. Meanwhile, they were walking around picking up body parts and putting them into a bag. The coroner found a purse, so it's likely it was a woman driving. The truck driver was walking around, very shaken up, but otherwise uninjured. This happened about 7 miles from my house and the driver of the car was probably someone local. It was by far the worst thing I have ever witnessed. I don't think I'll sleep well tonight, possibly not for a while.