Cain
apache
assassin
assassinator
bloodletter
bloodshedder
bravo
burker
butcher
button man
cannibal
cutthroat
desperado
eradicator
executioner
exterminator
garroter
gorilla
gun
gunman
gunsel
hatchet man
head-hunter
hit man
homicidal maniac
homicide
killer
man-eater
man-killer
manslayer
massacrer
matador
murderer
pesticide
poison
poisoner
slaughterer
strangler
thug
torpedo
trigger man
individual
mortal
person
somebody
someone
soul
choker
felo-de-se
garrotter
liquidator
public executioner
regicide
suicide
terminator
throttler
afflicter
animator
chaining
charioteer
chastiser
conqueror
destroyer
oppressor
persecutor
savior
saviour
slay
vanquisher
Breyer
Dreyer
Mayer
Sayer
Speyer
assayer
bayer
brayer
conveyer
conveyor
doomsayer
dreyer
gayer
grayer
layer
mayor
multilayer
naysayer
payer
player
prayer
preyer
purveyor
sauter
sayer
soothsayer
sprayer
stayer
strayer
surveyor