A top attorney for the city of Chicago resigned Monday after a federal judge ruled that he hid evidence in a fatal police shooting dating back to a 2011 traffic stop.

Chicago Senior Corporation Counsel Jordan Marsh reportedly concealed evidence contradicting the reason behind the traffic stop that resulted in the death of Darius Pinex, an African American male. Officers Raoul Mosqueda and Gildardo Sierra said they stopped Pinex because his car matched the description of a vehicle that was involved in a shootng earlier that day. The officers said they opened fire on Pinex after he refused to put his car in reverse. But it was later revealed that the officers had not been listening to the police radio channel that broadcasted the vehicle's description. Marsh reportedly found this out during the trial surrounding the case, but failed to submit the evidence and later lied about his knowledge of the information. 

"Attorneys who might be tempted to bury late-surfacing information need to know that, if discovered, any verdict they win will be forfeit and their clients will pay the price," U.S. District Judge Edmond Chang wrote in a 72-page opinion in the civil suit Pinex's familiy filed against the city. "They need to know it is not worth it."

Chang threw out the April ruling that found the shooting by Mosqueda and Sierra to be justified and ordered the city of Chicago to pay the plaintiffs' attorney's fees.

Officials for the city's law department stated that they are reviewing evidence-gathering and training guidelines, adding that the department "does not tolerate any action that would call into question the integrity of the lawyers who serve" the city.

But lawyers for Pinex's family say the incident is indicative of the way things work in the city of Chicago's law department.

"It shows the city hasn't just fought to protect officers, it also fights tooth and nail to protect its lawyers," Pinex family attorney Steve Greenberg told ABC News. "I don't think they cared that (Pinex) got killed, they didn't care what the truth was and they didn't care they cheated (with the evidence)."

This is yet another blow to the city of Chicago as its law enforcement arms continue to deal with the fall out from the release of the Laquan McDonald shooting video as well as several other questionable and controversial police shootings, including the December 26 fatal shooting of Quintonio LeGrier, 19, and local Action Now member Bettie Jones, 55, who were both African American.