Unfortunately this happens all too often. Some of the cases around here:

Grandfather forgot he was to drop grandchild off at daycare on his way to work, Wasn't his usual routine. Found child dead in the car when he got off work.

Day care worker leaves child in transport van for x-amount of hours. Child dead.

Couple leaves child in car overnight - same as the story posted. Child found dead.

Lots of near misses too.......child survives but for the grace of God.

I just don't understand how this can happen. Don't people double check anything anymore???