Did Voight change his ways?
On Chicago PD Season 6 Episode 16, tensions flared up when his "stay out of politics" stand was challenged when details of a prolific serial killer came to light.
With Ruzek trying to get through to Voight, it left Burgess to try and find more information before another victim popped up.
Elsewhere, Halstead continued to try and better his life, but things took an explosive turn when he suffered a setback.
Then there was Antonio, who was still struggling with the sins of his past.
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.