Theirs Subliminal messages in most of his tracks.
In a Eminem track he says "pac come back from cubaahh" and if you look at a artist called 'blac haze' (search on youtube) he sounds near enough the same as tupac, Blac Haze's album is called, "res-ur-ec-tion" or somthing. it's pac he's alive.
my point has been proven.
kkthnxbye.