User blog comment:DarkSkullPirates/More Than Alone/@comment-3119203-20120731183143/@comment-4889755-20120801015257

I was thinking, later, he saw how powerfull Whitebeard was, and admired him for inviting him into his "family" and wanted to be like him, but in his attempt to gain power he became very rash and was even willing to kill Thatch, then went on to be the next whitebeard.