It is most likely that he has damage to his limbic system because it is responsible for the inhibition of his aggressive tendencies.
What is the limbic system?
This refers to the brain part that is involved in the people's behavioural and emotional responses and when it comes to behaviours, it is vital in getting our need for survival: feeding, reproduction, caring for our young, fight or flight responses.
This brain section controls the appropriate responses to stimuli with social, emotional, or motivational salience which includes innate behaviors such as mating, aggression, and defense.
Therefore, It is most likely that he has damage to his limbic system because it is responsible for the inhibition of his aggressive tendencies.
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