Tragedies often bring out the best in people. Responding to a tweet by author Joyce Carol Oates, actress Marg Helgenberger said "one can only hope" that members of the NRA get shot, Twitchy reported Tuesday. "If sizable numbers of NRA members become gun-victims themselves, maybe hope for legislation of firearms," Oates tweeted Friday. "@JoyceCarolOates One can only hope, but sadly I don't think anything would change," the CSI star tweeted in response. This wasn't taken particularly well: "@MargHelgen @JoyceCarolOates are you encouraging violence against those who dare disagree with you?" asked "Jeremy Avery." "Congrats for becoming yet another clueless, VIOLENT,...