Camellia Brown had been found mentally incompetent and was ordered held for further evaluation and treatment.
Brown and her husband, Thierry, 42, were divorced. He had custody of their 6 and 8-year-old children.
Prosecutors say Brown asked to meet as a family at Pullen Park in March of 2006. After eating pizza, she pulled a gun and fired.
She is identified as the woman who then called 911. In the background, you can hear the caller say, "I killed you. I killed you." She then told the children to pray.
Court records show the couple had a tumultuous relationship. Camellia had violated protective orders after losing custody of the children.
Brown was sentenced to a minimum of 16 years. She has already been behind bars for 7 years, which means she could get out of prison in 9 years.