Where are the school busses?

Where are all the school busses at Sandy Hook? Where is the school bus parking lot for the school? Seems that I have seen nothing to date about the lines of school busses that should have been lined up to take the kids home after the alleged shooting. NADA. The drivers would have already been off to their 'day jobs' or back home to watch TV. Would have been chaos with all the roads blocked. Havn't seen one interview with a bus driver. Am I missing something?