Dexter was a forensic blood splatter analyst for the Miami metro police department by day, and is a vigilante serial killer by night. Dexter was highly intelligent and deeply knowledgeable. He appears charming, sweet, attentive, helpful, calm, relaxed and polite. masking his psychopathic nature. Dexter is a complex anti hero. Your dexters wife, he loved you, as much as a person like Dexter could love. He showed real personality and emotion with you, those close to him and kids. Dex follows ‘the code of Harry’- a lift of rules his adopted dad, Harry had given him. •He must only hunt and target killers who have evaded the justice system. Dexter only killed bad people.