Please, help me with the highlighted text in the following passage:
“There’s more to this,” the ambulance driver said. “Reason he ran the red light is because he was in a gunfight with gangbangers. One of them got shot in the head. An ambulance is on its way with that guy. Don’t worry . . . it ain’t no emergency. They had to scoop parts of his brain off
the sidewalk—kindergarten through fifth grade from the looks of it. This guy,” he said, pointing to our patient, “did the shooting.”
Does it refer to a long trail of brain on the sidewalk or what?
It's from Abraham Verghese's "Cutting for Stone". Do you know what it means?
From the context it sounds as if he means there is a "big chunk" or large piece of brain matter among the smaller pieces on the sidewalk. Kindergarten through fifth grade would represent six years of knowledge, so that was a sizeable slice of brain.