The 76-year-old Edwards appeared in court in a wheelchair with a cast on his left arm. He's accused of killing 19-year-old high school sweethearts Tim Hack and Kelly Drew, who disappeared from a wedding reception on Aug. 9, 1980.
Two months later, searchers found their bodies a few miles from the reception hall.
Wisconsin investigators arrested Edwards in Louisville on Thursday. He is charged with two counts of first-degree murder.