Irish singer-songwriter died of COPD, asthma, according to newly registered death certificate
                                
                                
                                    (Newser) -
                                    A year after she  died at age 56 , Sinead O'Connor's death certificate now details exactly what caused her death: chronic obstructive pulmonary disease and bronchial asthma, reports the  Guardian . The  Irish Independent , which first reported the news, notes that O'Connor's first husband, John Reynolds, registered the...