User blog comment:BeoBlade/God Eater: The 5 Doors - Chapter 7/@comment-14812118-20150529015439/@comment-24799642-20150529020101

no =.=

Beoblade killed her because when they met, she hated to call him "Beo" so when she said it he thought it wouldnt be the true Adeline and be the Key to finish his hell. And he is getting affected by the Doors and his tribute for The Last Overdrive, since he is losting his soul, he is starting to like killing and by that he got to kill Kaitlin and Amy.