Derived from

1_Knife_Slash_A.wav by lmbubec
http://www.freesound.org/people/lmbubec/sounds/118792/
http://creativecommons.org/publicdomain/zero/1.0/

Zombie Flesh Bites by MrPokephile
http://www.freesound.org/people/MrPokephile/sounds/155973/
http://creativecommons.org/publicdomain/zero/1.0/