Jerry Seinfeld on Roseanne Barr: 'Why would you murder someone who's committing suicide?'

There is an alternate universe in which Roseanne Barr, the actress and conservative provocateur, had actually put down the bullhorn of social media. After all, she had promised to do so. She wrote last month, in since-deleted messages, that she was "leaving Twitter" - penance for racist posts that brought a premature end to her revived ABC sitcom, "Roseanne."