Me too, man. Pac got killed pretty quickly after I started listening to him, so there wasn't some deep emotional thing going on for me with that. It reminds me of some song I heard that says something like "I didn't cry when Pac died, but I will when Hova does."
Also, it's horrible that all these younger artists are overdosing and getting shot, but that just isn't the hip hop I listen to. The first rapper that we lost that REALLY hit me hard was MF DOOM, and now, DMX.
After reading your post, it occurred to me that this is one of the first HUGE name rappers to go, for those of us who got SERUOSLY into hip hop in the JayZ/Nas generation rather than the Biggie/Pac era. It's only separated by a very few years, but they were FORMATIVE years, you know?
I mean, it sounds like I'm a little older than you- I was 16 when Pac got killed, but it still applies.