Former "Beverly Hills 90210" star Shannen Doherty is again battling cancer, this time stage 4, after initially announcing her breast cancer was in remission in 2017. "I don't think that I've processed it," the 48-year-old told Amy Robach, herself a breast cancer survivor, in an interview with ABC News. "It's a bitter pill to swallow in a lot of ways. I definitely have days where I say, 'Why me?' And then I go, 'Well, why not me? Who else besides me deserves this?' None of us do."