Still Unsolved Murder of young Girl on way to school haunts Peters Twp. 30+ years ago

I have have traveled thru the Donaldsons Crossroads  interchange many times where  15 yr old Christine Guenther  was abducted and murdered On a cold rainy  Oct 26 1981

http://www.post-gazette.com/local/south/2011/11/06/Murder-case-cold-for-30-years-warms-up-after-

billboard-and-Internet-campaign/stories/201111060219

http://chrisguenthermurder.com/

Donaldsons crossroads 

A customer and good friend built a golf ball driving range across the near by lake in 1984 and

Even in 84 the area was still largely undeveloped  as we where building the range  there was still plenty of talk around her disappearance  and murder by locals who helped with the range project  and its gone over 30+ years unsolved.
The interchange and area around it has been overly developed now and you would not recognize it if you have not been thru it for a while .
 Her body was found along Cecil Sturgeon Road in South Fayette in Allegheny County at the time a very rural area and road so it would appear who ever did the crime had to be a local to even know that road existed.
Perhaps Christine after waiting so long for the non running bus excepted a ride from some one  who seemed worried about her or  she started walking home or to pay  phone to get help when she was abducted.
But no one has seen any thing or any one pick her up.
Serial killer very possible I have long suspected one or more of running around the area and in this case ready to pounce at opportune time.
But fact her body was found where it was suggests some one local who had to know area and that road .
Which is still very rural  as South Fayette is now being slowly taken over by home developers.

Cecil Sturgeon road