I've actually been on the other end of this before, and I deleted all my stuff just due to the stress of it. It's possible she hasn't done anything and just wanted to get away. (Try to remember that people with severe depression do not think clearly and this is not a slight against you or your friendship, just their own personal issues.)
Now try to think of any other possible way you know to contact her. Did she ever share an email address, another website or forum she goes to? Hell, even a family members name that you could look up on facebook? It does really suck that she's left you without any knowledge of what happened but just try to not think the worst and stress yourself out over speculation.
Re: Help
I've actually been on the other end of this before, and I deleted all my stuff just due to the stress of it. It's possible she hasn't done anything and just wanted to get away. (Try to remember that people with severe depression do not think clearly and this is not a slight against you or your friendship, just their own personal issues.)
Now try to think of any other possible way you know to contact her. Did she ever share an email address, another website or forum she goes to? Hell, even a family members name that you could look up on facebook?
It does really suck that she's left you without any knowledge of what happened but just try to not think the worst and stress yourself out over speculation.