By way of Sony's PlayStation Network, some gamers have obtained Grand Theft Auto V's code and started ripping audio and more from the game. The result, of course, allows plenty of room for spoilers weeks ahead of the game's release.
Apparently, in some regions Sony's PlayStation Network allowed users to preorder and preload Grand Theft Auto V from the store. Preloading enables consumers to download the game ahead of release (usually with a few pieces of code missing so that the game remains inoperable) so they can play as soon as the clock strikes midnight on launch day. Despite the locks keeping people from outright playing GTA V, many are digging through the files and bringing whatever they can find back to the internet.
The most notable piece of spoilery material revealed so far is the game's soundtrack spread through all of GTA's radio stations. You can check the list out in this Reddit post, or be like me and avoid every detail until you have your hands on the game.
Recently the game's achievement and trophy list was leaked, providing a few more scant details.