Why Did Voight Cover Up Roy’s Murder on ‘Chicago P.D.’? It’s a Big Mess

At the end of Season 8, Voight had Roy cornered. Voight was beating Roy when Upton found them. She pulled a gun on Roy, but thought better of it, and for a minute, she wasn’t going to shoot him at all. Then, Roy went for Voight’s gun and Upton shot him on instinct. She did it to save Voight, but it has plagued her in Season 9.

Source: https://www.distractify.com/p/why-did-voight-cover-up-roys-murder-chicago-pd