By Brian Stelter, CNN
Is Rupert Murdoch's quest to take over Time Warner over just because he says it's over?
That's what media watchers are asking each other now that Murdoch has "walked away" - his words - from 21st Century Fox's proposal to acquire Time Warner, the parent company of CNN.
Some are relieved. Some are disappointed. And some... don't buy it at all. Since Murdoch's statement on Tuesday, I've talked to plenty of people whose reactions can be summed up with three words: "This isn't over."
