Azumi-sempai
Hmm,But weren't they together before?
Is mello trying to solve the case or does he want the notebook himself?
He wants to solve the case so he can beat Near, for once. In Ch. 61 we have a nice little flashback (Aaah! They're so cute as ickle kiddies! X333) about the scene after the...um...news.. of L...
Yeah, anyway... It explains how Mello was always second to Near, despite how hard he tried...and of course, he didn't like that, so he took off, got himself a posse and is now trying to solve the case before Near does.
And of course...to solve the case, the Death Note definitely IS an important factor...Though... I wonder what Mello would do with the Death Note afterwards...hmm....