July 10 (UPI) -- A 5-year-old boy has died after his mother left him in the car, convinced that she had dropped him off at day care, the San Antonio Police Department said. The mother, 22, routinely drops her son off at Pinnacle Kids' Academy day care and then goes to work nearby. Police said she went to work on Wednesday "fully" believing she had dropped her son off, but instead had left him in the back seat of her vehicle, officials said . When the mother left work at 4:30 pm CDT, she