At once shocking in its finality and completely expected, the producers of American Psycho announced Thursday that the Duncan Sheik musical will play its last Broadway performance on Sunday, June 5 at the Shubert Organization’s Schoenfeld Theatre, one week before the Tony Awards. Closing at a total loss of its estimated $14 million capitalization, the show will have played 81 performances including previews since opening to reviews from a split critical community…