However any attorney or advocacy organization will find it extremely arduous to prove that he did this in good faith.
Fleeing only makes it worse.
It is universally considered a symptom of insincerity.
An insincerity of mission and an insincerity of motive.
It will be an entirely unconvincing case even if it were made in the court of public opinion much less closed-door hearings.
Had he even made the slightest of effort to reach out (to whatever institution, individual or group that he trusted, based in the United States) he would have left an indelible impression on privacy advocates, news organizations and the larger public, even if his criminal fate eventually remained unmitigated, by that act of outreach.