About 726 of the 879 songs on my iPod playlist can be used for killing, but I'll give a couple examples.
[sub]....oh right right right you mean killing in video games. Whatever floats your boat.[/sub]
Beginning of the End -- Spineshank
Hairline Fracture -- Rise Against
Stupify -- Disturbed
Down with the Sickness -- Disturbed
Capt Midnight -- Tomahawk
ATWA -- System of a Down
BYOB -- System of a Down
All My Life -- Foo Fighters
I can even kill to Bob Dylan. It's just a matter of focus. Well, with me I guess. -shrug-