Here's another heart-breaking story of an infant found dead in a car, with especially unsettling circumstances.

An Antioch couple, both of whom work two jobs, left their 7-month-old baby in the car overnight after returning home on Saturday at about 11:30 p.m., thinking the other had put her to bed. She was not discovered until the next day, when the mother saw that the baby wasn't in her crib. The father had driven to work [update -- he actually went to work out], unaware that the baby was still in the car.

One would have to wonder why they went for so many hours without even checking on or feeding such a young baby. But, so far police have found nothing to indicate that the death was the result of ongoing negligence, and a home visit suggested that the infant and her 2-year-old sister were well cared for. The 2-year-old has been placed in the care of Children and Family Services during the investigation.

Last year, SFist discussed last year's Pulitzer Prize-winning article in the Washington Post and a similar one in the Chronicle, which attempt to make sense of these unthinkable situations.