Final answer:
Experts believe that violent behaviors are influenced by a combination of genetic predispositions, environmental factors, and perhaps even media exposure, such as through video games and television. Research in social psychology and behavioral neuroscience indicates a complex interaction between these elements.
Step-by-step explanation:
In "Mind of a Killer," experts are divided on whether violent behavior is solely due to nature, nurture, genetic predisposition, or environmental stimuli. The consensus often points towards a multifactorial understanding that includes all these elements.
Social psychology, which focuses on situational factors, can help explain the influence of environmental stimuli on behavior, while genetic factors such as the MAOA gene variant can be studied within the field of behavioral neuroscience to understand predispositions towards aggression.