In Avengers: Infinity War, Scarlet Witch attempts a heartbreaking sacrifice by destroying the Mind Stone embedded in Vision’s forehead — and subsequently killing him. Yet Thanos immediately undoes her good deed, knocks her aside, and then removes the Mind Stone — still intact — from his head instead, killing him once more and bringing himself one step closer to total power. It’s a double whammy all on its own, but at least the moment in which we see Vision’s destroyed body is fleeting.
Article source: https://www.cinemablend.com/news/2493017/avengers-infinity-war-concept-art-reveals-heartbreaking-look-at-visions-death