Taking a different approach: Looking at cold cases to see if any new theories of the crime emerge. For instance, if this was a "training case" for thrill killers with a broader agenda, where might they have gone after killing BC? Using Bessie's resources, I tried looking west to Indianapolis and east to Dayton for similar cases, but found this is very difficult to do, largely I think due to the age of the cases.
Looking only at the age and gender of victims, combined with MO, and sticking to the 1980s, I did find
one listing among
the Indiana cold cases. The location where the body was found is a well-to-do northeast suburb of Indianapolis today, but judging by when many of the homes were built (Zillow), it was probably very rural in the 1980s. The boy was abducted from Indianapolis. Here are the available details:
DELVOYD LEE BAKER 10/02/1982
Unsolved Cold Case Homicide 
Case Number 51-1609
Age: 14
Sex: Male
Race: African-American
Case Date: 10/02/1982
County: Hamilton
Location of Offense: Lantern Rd. near Fishers, IN
Circumstances: On October 3, 1982, the body of Delvoyd Baker was found on Lantern Road near Fishers, Indiana in Hamilton county. He had been dumped in a ditch along the side of the road. The cause of death was ligature strangulation. He had been missing from Indianapolis the night before. He was last seen getting into a van near the downtown library.
The details of the above are only superficially similar to BC's death; it's impossible to say more without additional details. The case is not on WS (thanks for the tip on pulling up OH cold cases on WS, Bessie). I'll try to find more info. If anyone else wants to look too, that would be great.
Also, I combed Bessie's Dayton spreadsheet for cold cases from the 80s, but the file contains only barebones details for these early cases -- no age, gender, or COD/MOD like it does for the later ones. There are 60 cold cases in Dayton in the 80s alone! None are the subject of WS threads, and the Dayton LE site does not give summaries for the cases like Columbus does. I am still looking for a way to narrow these down.