What was the true cause of the fire that claimed multiple lives?

That was revealed on Chicago PD Season 6 Episode 2 when Intelligence raced to find the man responsible when it emerged that he could be gearing up to do the same thing once again. 

Watch Chicago PD Season 6 Episode 2 Online

Meanwhile, Halstead took all of it personally, prompting his team members to wonder whether he should sit out of the mission. 

With the killer on the loose, what did Halstead do to remain on the case?

Use the video above to watch Chicago PD online right here via TV Fanatic. 

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Paul Dailly was an Associate Editor for TV Fanatic.Follow him on X.