Are you trying to make it look deliberate? I mean, obviously the girl's not a rocket scientist but it seems evident this was unintentional.
It was deliberate and intentional. She had no daycare, so leaving the child in the car was intentional.
Where do you get the idea that she had no daycare? The article states: “Duchene usually dropped the boy off at a day-care center on her way to work, but for unknown reasons failed to do so Tuesday, police Sgt. Joel Tranter.”