I found the following death notice (might not be "your" Charles) at America's Obituaries and Death Notices. I believe this is a service offered at many libraries to their card holders. You might want to check with your library and request the service if it's not already available.
Columbus Dispatch, The (OH) - February 9, 1997
Deceased Name: STEPP - Charles E.
STEPP - Charles E., 61, Feb. 5.
Columbus Dispatch, The (OH)
Date: February 9, 1997
Edition: Home Final
Record Number: 9702090032
THE COLUMBUS DISPATCH Copyright (c) 1997 The Dispatch Printing Co.