Suicide hsa no sense because you will never completely know what the person was thinking, hoy can an adult kill themselves over something like losing a girlfriend and their job and people who have been in serius Trauma (rapes, murder attempts, car crashed, disfigurations, mutilations, etc) don't do it? there's no theory.... there's no reason... it can range from a tumor pressing against a impulse control region in the brain up to a person with no self conrtol who was babied and over protected by his parents.... so many reasons, theories and possiblities: religious, biological, cognitive, etc....