particular school system again. and it is really tough because it is not a gate. there is not a big wall around it. so people can come or go and in this particular case, we don't know if this is a student or an outsider who just came on the campus. >> on the student point, let me -- i'm glancing down at my e-mail, roll with me. this is what we have from harris county, texas, sheriff's office. this is according to a cnn affiliate out of houston. ktrk. they're reporting a student at the school said he helped authorities take one person into custody, he says the suspect who appeared to be a student may be hearing impard and armed with a knife similar to an exacto knife that may be used in animal dissections. let me pause there. exacto knife. >> exacto knife, like a razor, you know, box cutter kind of knife. so not big, but there again, you know, doesn't take a big knife to do a lot of damage, especially if it is any kind of edged weapon like that, you can