User blog comment:Bluefox87/Chapter 416 Natsu is E.N.D...WHAT?!?/@comment-74.213.97.58-20150310042907

I think Natsu or his evil side E.N.D. had something to do with the death of the dragons. In the episode 301 manga Wendy used magic to speak with the soul of the Jade Dragon he spoke about Acnologia but before he disappeared he said "Because of you I was..."(killed) Only three dragon slayers were there and the one that has a connection (Zeref) to Acnologia is Natsu