When has there been such a burst of sickening headlines from one place? First, the killing of singer Christina Grimmie by an unhinged stalker with a handgun. Then the vicious slaughter at the Pulse nightclub by a homophobic wannabe jihadist with an AR-15. And, finally, the snatching of a toddler by an alligator roaming a Disney lake. All three stories are datelined Orlando, Fla., a stunningly freakish coincidence.