About 20,000 judges and court employees in Colombia extended a general strike into a second day to protest the assassination of a leftist leader, Jaime Pardo Leal. The nation's leading Communist, Pardo was president of the Patriotic Union, a party set up by leftist guerrillas under a peace plan arranged with the government three years ago. Right-wing death squads have been blamed for the killing of 460 party members. Virtually all Colombian labor unions staged a 24-hour strike Tuesday, but most businesses then reopened. The judges and court employees continued their strike because Prado had been a judge and had organized the court workers' union.