A Chicago police officer was unintentionally shot and killed by her partner after they chased a suspect into an apartment and encountered another person with a rifle, officials said. Krystal Rivera, 36,

Police confirmed that the only person who fired a weapon during the chase was an officer, "whose gunfire unintentionally struck Officer Rivera."

Officer Krystal Rivera of the Chicago PD died after being unintentionally shot by another officer amidst a confrontation with a suspect. Her death has deeply affected the city and her colleagues.