appears to be a carjacking that just happened to end up at a school. nothing noteable
https://www.cbsnews.com/amp/news/overland-park-kansas-shooting-two-workers-critically-wounded-outside-elementary-school-live-update-2018-7-3/
http://www.kctv5.com/story/38564633/2-in-critical-condition-after-shooting-at-overland-park-elementary-school