Prayer is worthless, and honestly if my kid was in that school when it went down, I would be pretty taken aback if people tried to come up to me and say that they'll pray for them, as if they have a private line to the master of the universe whom planned for my kid to be dead in the first place, and as if anything would come of their thinking. God (assuming one exists) watches millions of children die every year in terrible ways, yet their little attempt at telepathy is supposed to make it reconsider and make a single exception for my one child?