Yep...
http://earthquake.usgs.gov/eqinthenews/2004/KB_prediction.html
It's the group of Vladimir Keilis-Borok.
They had apparently been successful in "predicting" the Hokkaido quake of 2003 and the San Simeon California quake last year, but their predictions were very "vague" in the sense that both quakes had a good chance of happening by dumb luck.
Their next prediction was the one for Southern California, which failed. The window closed on September 5th.
It's extremely likely that the previous successful predictions by the group were simply "dumb luck."
Hmmmm.
On reflection, I thought there was a quake that qualified regarding the Sept deadline. Wasn't there one out in the Mojave desert in that time frame?
Certainly you could be right, for all I know.