I talked to my daughter last night, it turns out that she knew the boy who was shot, "Tort" (short for "the little turtle"). She didn't know him well, had only met him a couple of times, but one of her friends knew him somewhat better. She said that he was mid-20s, gay, and a total pacifist who regularly told people "No violence! We can't be like them!"
A group of them were camped out in "the Forest" (as they called that area), and he was shot in his sleeping bag inside his tent, from the outside. The police said that they had heard a shot, but there were no guns found in the area.