Jerry Seinfeld is weighing in on the fallout Roseanne Barr has received after she posted a racist tweet, leading ABC to cancel her hit sitcom, and instead, greenlight a spinoff series, titled The Conners, which won't include her. ET spoke to the 64-year-old comedian on Monday about a new season of his show,Comedians in Cars Getting Coffee, coming to Netflix, and also got his candid thoughts on the controversy surrounding Barr's remarks. "I didn't see why it was necessary to fire her," Seinfeld said. "Why would you murder someone who's committing suicide?" "But I never saw someone ruin their entire...