A rep for the Dave Matthews Band 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.”

Moore was only 46 years old.

Our condolences to his friends and family.  Rest in Peace.