The Beach Boys founder had been placed under a conservatorship less than two years before his death Brian Wilson died of "respiratory arrest," according to his death certificate The Beach Boys founder's death was announced by his family on June 11 The legendary singer was 82 years old when he died,

Brian Wilson’s cause of death has been revealed. The Beach Boys singer died two weeks ago at the age of 82. According to the death certificate first obtained by TMZ, Wilson died of respiratory arrest – which is breathing that stops while the heart continues to beat and is one of the most common factors in cardiac arrest.