Responsible for the deaths of others; guilty of murder.
Having the color of something which has been stained with blood.
Guilty of wrongdoing.
Stained, spotted or otherwise discolored with blood.
Of a person: intending or likely to commit murder; bloodthirsty, homicidal.
Very difficult.
Of an object: used to commit murder; capable of causing death; deadly, fatal.
Of, characterized by, or pertaining to murder or murderers.