MURRAY, KY - A man acquitted during a second trial in a fatal Murray State University dormitory fire has pleaded not guilty to charges of tampering with evidence in the case.

Jerry Walker Jr. entered his plea in a Calloway County courtroom Monday.
 
A hearing was set for Sept. 7 to address defense motions to dismiss the charges.
 
A jury last month found Walker not guilty of arson, manslaughter, assault and wanton endangerment in the Sept. 18, 1998, fire that killed student Michael Minger of Florida, and injured several others.
 
The charges were related to six anonymous letters that were used as evidence in last month's trial.
 
A grand jury had returned sealed indictments on the tampering charges before the latest trial.