We all know how the little song and dance is gonna go, though. He leaves that embassy where he's hiding out, gets put on trial. Whether he's convicted or not, the US is gonna point out that they want to put him on trial themselves, push on Sweden until they give him up, and then we never see him again. If he's lucky, we'll kill him off quickly.
And don't try and tell me the US wouldn't do this, we've done a hell of a lot worse to people we don't like.