Chicago police officials say an officer killed this week was accidentally shot and killed by her partner after they encountered someone with a rifle when they chased a suspect into an apartment.

Krystal Rivera, the Chicago police officer shot and killed in Chatham, was a loving mother, friend, and devoted police officer who cared deeply about protecting the community.

Krystal Rivera, a 36-year-old single mother who had spent four years on the force, was rushed to the hospital in a squad car after taking a gunshot wound to the back. The vehicle she was traveling in bizarrely crashed and caught on fire, and she had to be transferred into another vehicle to complete the journey.