I concur with several of the above posts that those of us who know any little detail had best keep quiet and not give it to the press (some of whom seem to read Free Republic).
It is actually pretty amazing that some school security measures (of which many of us parents are aware) have stayed out of the press, and, yes, even off this thread. After this is over, I can provide some examples.
The schools around here are desperately trying to keep a low profile, but school personnel and we parents are having to unite against the media. The media want to blab to everyone, including the murderer/s, everything the schools are doing to protect our children Look what happened when the word got out that football games were being relocated - a man was murdered at a site where supposedly at least one team had stopped.
Right now parents, kids, and school staff should stay out of the news. I live across the street from an elementary school and just found an unknown van with out of state plates in my driveway (which is screened by foliage). I then found three self-proclaimed network reporters on school grounds, but not visable to the staff, videotaping kids and the parents dropping them off. I ran (literally) back to our house and reported them and their vehicle to the school system's media office, and at last check, the three strangers were being chased off school property. Sure these guys have a job to do, but I do NOT want MY kid's school on the news this week!
The police and the various school superintendents ARE working together and are doing everything they can think of to assure the safety of our children. We have to help, and keep our mouths (and typing fingers) quiet for the duration - except to report anything suspicious.