He was quickly replaced by John Frusciante in October 1988 and writing for the next album quickly began .
McKnight 's tenure was brief , lasting three shows in September 1988 before he was fired .
McKnight was quickly replaced by John Frusciante in October 1988 and writing for the next album quickly began .
McKnight 's tenure was brief , lasting three shows in September 1988 before he was fired .