Quoting Snotface♫[usmc]:" The whole part about her lying about having been robbed makes me think she knew exactly what she was doing. She was babysitting her children as in she did not have custody of them or....?"
She had her Son, was babysitting the little girl.
But yes, I think she was lying. She changed her story many times. Once, she was mad at her Husband, so she killed them to get back at him. Another, they had the Devil or some such in them and she had to get rid of it.
She made those babies get down on their knees and pray to God, while telling them they're meeting Jesus tonight. They both begged for their lives. I think in this case, the death penalty is warranted.