firemen and paramedic practice in aurora parking lots. gateway hs from theater shooting on lockdown with no info.

I live in Aurora co. And today there are the south metro fire department and Aurora paramedics training inside an abondoned restaurant. Tons of departments clearly there. I found it weird also that I read an article that gateway hs.( The one a block away from century 16 where all the shooting witnesses went). The Aurora pd has it and the surrounding elementry school on lockdown from 11am this morning with no explanation. Weird.