A Chicago police officer was killed in a shooting in the city's Chatham neighborhood Thursday night. According to the Chicago Police Department, officers were on patrol and attempted to conduct an investigatory stop just before 10 p.

Officer Krystal Rivera was excited to celebrate her daughter's 11th birthday this weekend. But Rivera's life was tragically cut short late Thursday, when she was fatally shot in the back by a bullet fired by another officer.

The officer, a 36-year-old woman and mother of a young daughter, was killed during a foot pursuit, according to Police Superintendent Larry Snelling.