Voight was seen in the Season 3 finale investigating the body of a widow and he soon realized that the victim has a connection with his son Jason.
Before his team from the Chicago PD can get a clue about what was really happening, Voight has started to go on a vigilante mode and began a killing spree to get to the perpetrators who murdered his son.
As a character that was obviously being tormented by his past, seeing Voight unleashing his pent up emotions was both heartening and terrifying.
According to reports, Voight would likely continue to show a different side of him in the upcoming fourth season of “Chicago PD” and the viewers would certainly find it unpleasant. The police sergeant has a destructive side and it is likely that he will be toeing the line between right and wrong in Season 4.
Olmstead disclosed that the most important question for Hank Voight in the upcoming Season 4 of “Chicago PD” is how he will be able to regain control of himself and not allow his emotions to get the better part of him because that’s when he becomes dangerous, not only to the criminals but also to his team.