 Recognizing the boy's trauma and the subsequent development of his sociopathic tendencies, Harry has manipulated Dexter to channel his gruesome bloodlust into vigilantism, killing only heinous criminals who slip through the criminal justice system.To facilitate covering his prolific trail of homicides, Dexter gains employment as a forensic analyst, specializing in blood spatter pattern analysis, for the Miami Metro Police Department.Dexter is extremely cautious and circumspect; he wears gloves and uses plastic-wrapped "kill rooms", segments the corpses, and disposes of them in the Atlantic Ocean's Gulf Stream to reduce his chances of detection.