Robinson is registered to vote as an independent (no party affiliation) but listed as an "inactive" voter, meaning he hasn't participated in recent general elections. He attended high school in Utah, and a family member recalled discussions where he expressed disdain for Kirk, describing him as "full of hate and spreading hate." Authorities noted he had become "more political" recently but believe he acted alone. A Discord spokesperson confirmed identifying an account linked to him but found no evidence of planning or promoting violence on the platform.