Answer:
Sigmund Freud
Explanation:
Sigmund Freud was an Austrian psycho dynamic theorist and a neurologist. According to him, people possess unconscious thoughts and feelings; how people behave or act depends on these unconscious thoughts. An example of this unconscious thoughts is death instinct which is present in most people. However, the resulting act of killing one's self occurs when an individual direct such unconscious thoughts of death toward themself