whoever published it is responsible, I guess, Gromit. It's NI, not the paper itself, that's been dishing out compensation to the hackees as far as I know. But the paper had clearly become toxic and Murdoch evidently thought closure was the only option - especially since they're desperate to get the Sky takeover through.
Thoush some people loathe all journalists, it's likely that only 5% or less of the ones on the NoW had anything to do with all this; but they'll all be losing their jobs. When (the probably next step) the Sun goes to seven-day publication, some may be rehired. And part of the ploy is surely to keep Rebekah Wade's job.
Andy Coulson's job must still be in jeopardy, though. If Murdoch can close down a whole newspaper, why can't Cameron dump one tainted PR chief?