I returned to the Square around 5pm, this time, fortunately, with the camera. Small crowds were gathering, typically surrounding unusually large and professionally manufactured banners reflecting contrasting political sentiments. It didn't feel like anything unusual would be happening - but then as I turned to head away I noticed something strange.
From south to north along the western edge of the Square a twisting line of people - mostly youth - had gathered. It was odd, both for its location and its formation. I puzzled over what was happening, and wondered if they might be forming to begin a march to another site, knowing that protests now occur at various places throughout Cairo. Upon closer look I realized that there were actually two lines, at most two persons deep, facing each other.
I noticed several people taking photos - even entering the alley and tracing its length - so I ventured closer, still not understanding clearly what was the subject of this apparently very serious ceremony. I found one of the few open spots in the west facing line and began to take some photos. A young man next to me (who later shied away from me taking his own photo) tapped me gently on the shoulder and asked if I would take a picture of a photograph of a young man that he held in his hand; and, next, of a small card he produced when I asked him who the young man was.
Once the candles had dimmed, the group gathered in front of a large projection screen, sat, and watched a series of scenes of their lost comrade.