The extradition was not issued until after the WikiLeaks. Assange has always claimed he was given the leaks from manning. This is why the UK courts have an appeal against extradition order. It tells you this in the Wiki page on Assange. Assange is an arsehole, he has a history of hacking in the 90's. This doesn't mean he should be hounded by the richest in the world because they did not like what he said about them.