I found this, but never found any followup, or any preceding articles. This is a clip from the Journal Gazette, (Fort Wayne, IN) - Sunday, June 23, 1996:
" Wells County Police Detective Barry Story will not forget Sheri Herr , and he will not stop looking for her killer.
Herr, 18, was killed with a blow to the head and then stabbed in the throat with a scissors on Oct. 13, 1989, in her home near Dillman in southwestern Wells County.
Police said there was no forced entry to the home, and Herr had not been sexually assaulted. "
There is more, but that's the most relevant info.