A federal grand jury has indicted Jaylin Arnold, the man Chicago police officer Krystal Rivera was chasing when she was fatally shot by her partner last year, on charges of conspiring to traffic fentanyl and cocaine. The indictment, returned Thursday, alleges Arnold and four other men ran a drug trafficking operation in Chicago between January and June 2025. The U.S. government is also seeking forfeiture of any firearms and ammunition tied to the case.

Arnold, 28, was already serving an eight-year state prison sentence after pleading guilty to gun and drug charges related to the June 2025 incident that ended Rivera's life. That plea deal drew sharp criticism from Rivera's mother, Yolanda Rivera, who called the sentence "extremely severe" and argued that Arnold should not bear the full weight of institutional failures.

The tragedy unfolded when Rivera and her partner, Officer Carlos Baker, chased Arnold through the Chatham neighborhood and into an apartment building. Baker fired a single shot that struck Rivera, killing her. Bodycam footage later revealed that Baker waited more than 90 seconds to provide aid as Rivera gasped for breath. The lawsuit filed by Yolanda Rivera against Baker and the Chicago Police Department alleges that Baker was struggling to accept that Rivera had ended their romantic relationship. The day before the shooting, Baker showed up uninvited at Rivera's home, according to the lawsuit. Baker had a lengthy disciplinary record, including more than a dozen misconduct complaints, as reported by the Chicago Sun-Times.

Arnold's attorney, Michael Clancy, stressed at the time of the plea that his client was not charged with causing Rivera's death. "I think everyone has to remember he was not charged with the death of the officer or having anything to do with causing the death of the officer," Clancy said. He did not immediately respond to requests for comment on the new federal indictment.

Arnold has a history of gun-related convictions: he was sentenced to seven years in prison in 2023 and has been incarcerated at least two other times for similar offenses. The federal indictment adds a new layer to a case already fraught with questions about police accountability, departmental discipline, and the emotional dynamics within the Chicago Police Department. Yolanda Rivera's civil lawsuit continues to press for answers, alleging that Baker's actions were not only negligent but also driven by personal motives. The case has drawn attention to the systemic issues within the department, including the handling of misconduct complaints and the training of officers in high-stress situations.