Moore was seriously injured in an ATV accident June 30 outside Charlottesville. He had a punctured lung and broken ribs. Moore went back into the hospital last month due to complications.
Moore died in Los Angeles this afternoon, after taking a turn for the worse.
We're also told the band will perform tonight as scheduled at the Staples Center in L.A.
UPDATE: A rep for the Band just gave TMZ the following statement:
"LeRoi Moore, saxophonist and founding member of Dave Matthews Band, died unexpectedly Tuesday afternoon, August 19, 2008, at Hollywood Presbyterian Medical Center in Los Angeles from sudden complications stemming from his June ATV accident on his farm near Charlottesville, Virginia. Moore had recently returned to his Los Angeles home to begin an intensive physical rehabilitation program."