With aggressive therapy, he said, my father could regain a meaningful degree of movement and perhaps some speech.

But the six months he had spent without real treatment had done permanent damage that could not now be undone.

If he had been brought to a hospital that first night and given the care he needed — if someone had simply called an ambulance and stayed — my father would in all likelihood be walking today.

I made myself hold that sentence and not look away from it.

Someone had chosen not to call.