 Ramba uchiverenga ndima iyi - Somukuru weDhipatimendi Rokuvhiya paYunivhesiti yeArizona, Gruessner aitarisira kuvhiya kwaiitirwa vanhu vakaurayiwa muTucson muna 2011. Varwere vacho vaisanganisira aimbova nhengo yeDare reKongiresi reU.S. Gabby Giffords, uyo akabatwa nepfuti yakaipisisa mumusoro. Ari muArizona, Gruessner akaita chirwere chekutanga chekurapa zvirwere zvemudumbu, chirwere chekutanga chekurapa chirwere chemudumbu, chirwere chekutanga chekurapa chirwere chemudumbu, uye chirwere chekutanga chekurapa chirwere chemudumbu. 