A helmet-cam video documents the explosions:
James Dao captions:
The edited version, which includes narration by Specialist Gannon, captures the eerie suddenness of the explosions, and, in the case of Specialist Hayes, the efforts of his platoon sergeant and two medics to aid and comfort him. What it does not quite capture are the raw emotions of the soldiers: the nervousness many felt climbing the hill, their anger and frustration after the explosions.
The Dish 