Alvarez says she talked to several mothers who lost children before the event, and she was visibly moved by their stories.
"You have endured so much, and I know we can never bring your loved ones back. I know that, but I hope the assistants in my office serve you well, and I know the Victims Witness Office is there for you. And I feel for you as a mother of four children," Alvarez said.
Another event Saturday with an anti-violence focus took place in Chicago's Back of the Yards neighborhood. Chicago Police Supt. Jody Weis attended the CAPS rally and listened to residents concerns.