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
slaughterer
slayer
strangler
thug
torpedo
trigger man
'back
adulterer
adulteress
betrayer
blackmailer
counterfeiter
duelist
forger
highwayman
housebreaker
kidnapper
murderess
over
parricide
perjurer
pickpocket
plunderer
restrung
seedship
smasher
squealer
swindler
tollhouse
violator