OCONTO, Wis. -

A former Oconto Falls man has pleaded not guilty in a cold-case homicide.

Prosecutors charged 52-year-old Peter Hanson last month with being party to first-degree intentional homicide.

Hanson is accused in the death of 19-year-old Chad McLean of Green Bay, who disappeared in 1998 after a night of partying. His body was found a month later beneath a bridge near Abrams, Wis.

In Oconto County court Wednesday, Hanson waived his right to a preliminary hearing and entered his not-guilty plea.

WLUK-TV reported that Hanson's attorney had no comment after court. McLean's family also declined to comment.

Hanson is being held on $500,000 bond. He has been in the Oconto County Jail since November on unrelated charges.

His next court appearance is scheduled for June 4. Trial is set for December.