Well... Axel didn't meet his end by Sora's Keyblade. He...

[ She swallows hard. Luckily, Demyx keeps her talking, and she nods. She feels so awful that she has to tell Demyx this. But... she's not in the business of leaving questions go unanswered, or being dishonest. ]

... I'm sorry, Demyx. [ And she is, to her own surprise. ] I'm sorry... that you had to find out here. Because of Oogie Boogie.