strangely , garnet felt a compulsion to try to contact petit once again a week after the destruction of the twin towers in 2001 , only to discover that he was now artist-in-residence at the cathedral of st. john the divine , in morningside heights , at the north end of columbus avenue , not so many blocks distant from his own park avenue apartment , only to be thwarted once again , as the popular artist was out of the country at the time .