A seven-year-old boy banged on the windows while the sun turned the van into a furnace. Inside the supermarket, his parents were too busy screaming at each other to notice.

A seven-year-old boy banged on the windows while the sun turned the van into a furnace. Inside the supermarket, his parents were too busy screaming at each other to notice.

Part 1 — The Argument That Left a Child Behind

It was just past noon when the sun hit Main Street like a furnace. Cars shimmered under the relentless heat, and the …