He's a Canadian resident, not a citizen. Unfortunately that makes all the difference in the world:
“Canada condemns Iran’s reported decision to execute Mr. Malekpour. Sadly, his case is far from the only example of Iran’s utter disregard for human life. The regime in Tehran frequently ignores principles like due process for its citizens domestically, and international human rights obligations generally.”
Canadian governments condemns his execution, but nothing more.
And rightly (although sadly) so. Consider the reverse: A Canadian citizen takes up residence in a third-world country, where he has sex with minors. He returns to Canada, where he is arrested under Canadian law for engaging in sex tourism.
The other country may want to prosecute him, they may not, they may want to protest, they may not. But the Canadian government is not bound by any treaty or agreement to send him back to the other country.
“Canada condemns Iran’s reported decision to execute Mr. Malekpour. Sadly, his case is far from the only example of Iran’s utter disregard for human life. The regime in Tehran frequently ignores principles like due process for its citizens domestically, and international human rights obligations generally.”
Canadian governments condemns his execution, but nothing more.