Civil rights activist Al Raby, who managed Harold Washington's successful campaign for mayor in 1983, died Wednesday of an apparent heart attack, nearly a year after Washington died of the same ailment.

Raby, 55, a former teacher, also was a leader during the 1960s of the Coordinating Conference of Community Organizations, which helped bring the Rev. Martin Luther King Jr. to Chicago in 1965 in an attempt to shift the civil rights struggle to the North.Raby was named Washington's campaign manager in late 1982, just before the Democratic mayoral primary in which Washington defeated incumbent Mayor Jane Byrne and Cook County State's Attorney Richard M. Daley, son of the legendary Mayor Richard J. Daley.