The only thing I know of on 8/30/2010 was a Bishop, Clay Sannar, being mudered by an anti. But all that “love and caring for The Mormons not Mormonism” that is being preached by the anti crowd sure helps with these types of “events.”
It's quite telling that that is all you know about 8/30.
But I'm not at all surprised. But you're right. It is these types of events as told on this very thread that contribute to violence against individual Mormons.