CHICAGO (CBS) — Maria Roque was just 34 years old when she was shot and killed on the steps outside her West Side Chicago home, in front of her 8-year-old daughter.

Her daughter and her 14-year-old son both witnessed Roque take her last breath.

In the weeks before she was killed, Roque repeatedly took all steps domestic violence victims are told to take. She got a protection order against her former boyfriend, Kenneth Brown. She also repeatedly went to the Chicago Police Department for help. She filed one police report after another and never gave up.

But the system failed her.

Those who loved Roque hope her legacy will be one of change to keep domestic violence victims alive.