Police charged Kathleen Steele, 62, with aggravated manslaughter of a child after they say her 6-year-old son beat her 13-day-old daughter to death while unsupervised in a van Monday. Officials say she left her three children in the locked van with the windows up for a half an hour. But it wasn't the Florida heat that killed the infant - they say it was her other child. And that's just part of this terrible tragedy
