Oh, but there are easier ways to do that. Offer to let him avoid being extradited to Sweden in exchange for not reporting on certain things, for instance.
Do you really think the Ecuadorean embassy, which had to install a shower so they could house him, is able to resist political pressure from basically all of NATO? Snowden had to flee to Russia, not even a Russian embassy, and he's not even leaking anything new. (I'm not necessarily claiming that anyone is actively manipulating WikiLeaks, just that there are a million easier ways to do it than secretly killing him and making a CGI double - and secretly killing him would require Ecuador's cooperation, anyway.)
Do you really think the Ecuadorean embassy, which had to install a shower so they could house him, is able to resist political pressure from basically all of NATO? Snowden had to flee to Russia, not even a Russian embassy, and he's not even leaking anything new. (I'm not necessarily claiming that anyone is actively manipulating WikiLeaks, just that there are a million easier ways to do it than secretly killing him and making a CGI double - and secretly killing him would require Ecuador's cooperation, anyway.)