I'm letting these motherfuckers live, it was truly compassion
I'm brutally bashing cause I'm steadily losing my passion
Tell Louie to stab them or to shoot them with two different Magnums

from Vinnie Paz (Ft. Amalie Bruun & R.A. The Rugged Man) – Nosebleed Lyrics on Rap Genius

Meaning

He shows a moment of rare empathy by sparing his opponents, but then he destroys them for being dispassionate.

Louie is one of his nicknames and Magnum is a type of pistol. Shooting someone with two different Magnums is also a way of distracting investigators — ballistics will confirm two different Magnums used in the slaying, therefore police will assume it was two different shooters, instead of the one shooter.

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