Heirs say Robert Kory and his attorney swapped in forged paperwork after their father had died
                                
                                
                                    (Newser) -
                                    Leonard Cohen died more than six years ago, at the age of 82, but the battle over his $48 million estate continues. It's the "Hallelujah" singer-songwriter's adult children, Adam Cohen and Lorca Cohen, versus his former manager, Robert Kory, who is the manager of Cohen's trust,...