What countries can execute Canadians?

Having seen that a Canadian man on death row in Montana is now suing for the Canadian government for lacking the courage to maintain Canada's policy of opposing the death penalty, it has started me to wondering about which states might kill Canadians, and for what reasons. The government of Hangman Harper said that it would not fight against executions in a place like the US because it is "democratic" and "supports the rule of law."

This is another part of the new Harper look-the-other-way policy about which I'm curious. Canada's back alright, back in the pocket of the US. We are supposed to friends with the Americans, not their subservient lackeys.