Catherine Rampell: How long does outrage over a murder last? On Wall Street, six months.

Washington • What’s the expiration date on moral outrage over a gruesome murder?On Wall Street, at least, the answer seems to be roughly six months.Six-and-a-half months ago, Saudi journalist Jamal Khashoggi, who was my colleague at The Washington Post, walked into the Saudi Consulate in Turkey to take care of some paperwork. Then he vanished. In the days and weeks that followed, the world learned that a 15-member hit team dispatched by the Saudi government had strangled the 59-year-o