PERTH, AUSTRALIA – OCTOBER 31: The Aboriginal flag is held on October 31, 2022 in Perth, Australia. Cassius Turvey, 15, died in a Perth hospital last Sunday after he was violently assaulted in Middle Swan. Turvey was walking in the area with friends when …PERTH, AUSTRALIA – OCTOBER 31: The Aboriginal flag is held on October 31, 2022 in Perth, Australia. Cassius Turvey, 15, died in a Perth hospital last Sunday after he was violently assaulted in Middle Swan. Turvey was walking in the area with friends when …