Wow. Pretty shocking. I could generally care less about celebrity deaths either, but man, I listened to First Born so much... that album is pretty fucking classic. And I'm not even a huge fan of hip hop in general any more.
Sad day man.
On a side note, this has brought to light for me his third album from '09. I haven't been keeping up with him because I didn't really like E&A all that much... not because it's a bad album, I think my tastes have just changed over the years. I'm kind of digging this live instrumentation on By the Throat though. I'll definitely be giving it a listen.