RBBM, it does happen. It is not rare. It happens often enough in GA that May 27, 2014 not even a full month from that date June 18, 2014 when Cooper died. The Gov did the immediate media release of the campaign his office and others had been working on. It is not some trivial matter. It happen, and happens often. Too often.
Just this past Aug a GA father left his 15 month old TWINS in hot car and they died.
Father Indicted in Twins' Hot Car Death
Asa North is facing second-degree murder charges for leaving the girls in a hot car outside a Carrollton apartment complex.
By Tim Darnell (Patch Staff) - September 1, 2016 11:38 am ET http://patch.com/georgia/atlanta/father-indicted-twins-hot-car-death
Heatstroke Deaths of Children in Vehicles
by Jan Null, CCM
Department of Meteorology & Climate Science
San Jose State University
Updated October 31, 2016
Total number of U.S. heatstroke deaths of children left in cars, 2016: 39
Total number of U.S. heatstroke deaths of children left in cars, 2015: 24
Total number of U.S. heatstroke deaths of children left in cars, 1998-present: 700
Average number of U.S. child heatstroke fatalities per year since 1998: 37
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A few dozen a year out of the over 23 million children under 5...is exceedingly rare. Even one is too many, but it is rare. Stranger child abductions are considered very rare, and there are more yearly.