A Chicago-based communist revolutionary group blamed by Milwaukee's police chief for stoking a second day of violence said that some of its members did go there to "support a revolution" but didn't set out to cause trouble. Police chief Ed Flynn said members of a Chicago chapter of the Revolutionary Communist Party turned what had been a peaceful night into a tense one by leading marchers down several blocks at around 11:30 p.m. TV footage showed a small group of protesters walking or running through