devil
that's enough to kill the devil

fat
to kill the fatted calf

first
I'd die first! / I'd kill myself first!

goose
...to kill the goose that laid the golden eggs

how
...seen them kill the man

kill
I'll do it (even) if it kills me!

kill off
matar

look
...going to kill the man

shalt
thou shalt not kill

when
...it might kill him?