If a child is left in a hot car, the vehicle should alert you, advocates for law say

Jennifer Hilton is a loving mother who would never put a child in danger. Until the day she did.

On Oct. 6, 2010, Hilton forgot to drop her son Chris at day care — a job her husband usually did — and instead left the toddler in the car when she went to work in south suburban Crestwood. Luckily,...