She took Danielle to Mervyn's and left HER alone, while going back for the boys.
Do you know if the police questionde the clerk at Mervyn's to see if this is true? Maybe Brenda was saying this to make everyone believe Danielle was with her, instead of home alone.
Papa and Momma VD left the kids alone frequently...this has been proven. Why? Did they think the kids were old enough or responsible enough to take care of themselves? Like little adults? Hmmmm...
This might lend creedence to the theory that Danielle was sexually abused, and her "indoctrination" to Brenda and Barbara's world. Brenda thought Danielle was "old enough" to handle it?