homicidal (adj.)

• amok
• berserk
• bloodthirsty
• bloody
• bloody-minded
• cruel
• cutthroat
• deadly
• ferocious
• gory
• insane
• lethal
• mad
• maniacal
• mortal
• murderous
• red-handed
• sanguinary
• sanguine
• sanguineous
• self-destructive
• slaughterous
• suicidal