GREEN BAY, Wis. (AP) -

Brown County authorities have announced a break in a cold-case homicide, charging an Oconto Falls man in the death of a teenager 15 years ago.

Green Bay police announced charges Friday against 52-year-old Peter Hanson. Investigators say at least one other person may have been involved.

He's 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.

A WLUK-TV report says Hanson has been in the Oconto County Jail since November on unrelated charges. He's expected to make an initial appearance next week on a charge of being party to first-degree intentional homicide.

Defense attorney John Wallace says it's too early to comment on the case.