The person is also Chinese citizen, which reporter does not mention or not give proper importance in this situation, he only saying Canadian. If you have dual citizenship and you are in another country that you are citizen of, then of course that country treats you as their own citizen and citizenship of another country does play any role. Can you imagine person with British and Canadian citizenship being arrested in Canada and having British press just saying British citizen was arrested in Canada, without mentioning that the person is also Canadian?