>he's been under house arrest for over 500 days without charges

I feel this is somewhat disingenuous. He's been under house arrest pending extradition hearings because the UK received an arrest warrant for him from Sweden.

EDIT:

And while it's technically true that charges haven't been formally filed yet, it's my understanding that this is due to a peculiarity in Swedish law where they have to have a person physically present to bring charges. Hence the arrest warrant.