Lawrence Reed, 50, is set to be arraigned Friday.
According to the new indictment, he allegedly set a fire at City Hall three days before setting the woman on fire.
Reed has also been accused of trying to sexually assault a female CTA rider, and then attacking a man who intervened in March.
Reed is accused of dousing a woman in gasoline and setting her on fire on a Blue Line train Nov. 17.
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He has a lengthy criminal history, including over 70 arrests.
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