The store sells goods on the black market as a side business. The man who was arrested was the owner of the store, the man who died was the police officer who came to shut him down (was killed by the man who was arrested) and the one who ran was an innocent witness who feared for his life.
Granted, but Notch finds out and changes his own skin to Justin Bieber. Everyone tries to kill you the second you log in to a server. I wish you could break anything with your bare hands IRL like you can in Minecraft.