Lyric discussion by mahoganyfox 

This song was written for The Hunger Games specifically. Whenever I listen to it, I always think of President Snow & Seneca Crane. President Snow being "The Ruler" because he rules Panem & has complete control over it. Seneca Crane (The Head Gamemaker) being "The Killer" because he controls how the actual Hunger Games are played out in the arena. This is my interpretation, but I'm about %99 sure this is what it's about because the song is pretty self-explanatory.

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