Firebug who set woman ablaze on Chicago train eyed in City Hall fire as riders question CTA safety

The maniac who set a woman aflame on a Chicago Transit Authority Blue Line train Monday night is now being investigated in connection with a suspicious fire at City Hall a few days earlier, authorities said.

The 45-year-old assailant, whose name has not been released, remains in custody for allegedly dousing a 26-year-old commuter with an accelerant and setting her ablaze after the pair got in a heated argument while aboard a CTA train.

Authorities are investigating whether a fire attack on a Chicago Transit Authority train on Monday was committed by the same person who set a blaze at City Hall a few days earlier. Bloomberg via Getty Images

The unidentified victim remains in critical condition at Stroger Hospital.

In an alarming twist, cops are now looking into whether the same firebug was responsible for a blaze that broke out at City Hall on Friday, ABC 7 reported.

A person spotted in surveillance footage bears a similarity to the alleged attacker, and detectives are now seeking higher-quality video to help determine whether the same person was responsible for both incidents, a source told the outlet.

Chicago’s City Hall was the site of a suspicious blaze last week. NurPhoto via Getty Images

Monday’s fiery assault came just a week after a 27-year-old woman was stabbed in the chest by a deranged knife-wielding man as she sat on a bench at the UIC-Halsted Blue Line platform near the University of Illinois Chicago on Nov. 10, according to police.

The thug fled at the next station stop and has not been apprehended.

The horrific back-to-back attacks on the city’s public transit system in recent days have stoked fear in some riders, who say CTA has gotten sketchier over the past few years.

“That’s an absolutely horrible thing to have happened on the L. But I have to say, the past three or four years, the L has not been a pleasant experience, and it’s a dangerous experience, at worst,” straphanger Tarick Loutf told the outlet.

“The CTA has been working closely with the Chicago Police Department and the Public Transportation Unit detectives embedded at the Strategic Decision Support Center dedicated to CTA to support their investigation, which has now led to the arrest of a person of interest,” the transit agency said in a statement.