A Marinette County judge heard arguments Friday on whether prosecutors can use their only physical evidence tying a man to a double homicide.

Wisconsin, 1976: A Green Bay couple in their twenties who are engaged to be married are shot dead at the McClintock campground in Silver Cliff, Wisconsin.

Wisconsin, 1976: A Green Bay couple in their twenties who are engaged to be married are shot dead at the McClintock campground in Silver Cliff, Wisconsin. The gunman shoots the man as he is putting up ...

Wisconsin, 1976: A Green Bay couple in their twenties who are engaged to be married are shot dead at the McClintock campground in Silver Cliff, Wisconsin.