Brian McKiernan, the chief executive of Davy, Kyran McLaughlin, its deputy chairman, and its head of bonds, Barry Nangle, have all finally resigned. The resignations of the three high-ranking figures at the broker follow a damning report by the Central Bank on Tuesday into the Anglo bond scandal. The three men had hoped to ride out the controversy which saw Davy branded as acting “recklessly” and in its early dealings with its regulator in a manner that had a “lack of candour.” Bernard Byrne, deputy chief executive of Davy, has been appointed interim chief executive of the stockbroker, subject to…