User blog comment:Stone Roger/random doubts/thoughts in chapter 626/@comment-3213092-20110526121827

Decken has nothing to do with this...I dont think he planed to kill Otohime(his imaginary future Mother-in-law),he only wanted to touch Shirahoshi and he found the chance to do so...I didnt see Jones in the scene,so its a strong possibility that he did it..Or his friends...

I dont believe that Shirahoshi will become the next Straw Hat...But Luffy is the one who will guide her..