Based on the modern theories of psychology of behavior and psychoanalysis crime is a multifaceted concept which cannot be incapusulated in a single definition, therefore we cannot conclude that this complex term has a single or clear cause and rigidly define that why people participate in criminal behaviours.on the other hand through years of interviews and and clinical work with criminals we might be able to demonstrate various but overlapped factors why the majority of criminals tend to continue the criminal behaviour or initiate it in the first place.
As Stated in the diagnostic and statical manual of mental disorders environmental and social factors are the most mentioned and observed factors leading to mental disorders such as antisocial behaviours or borderline disorder which in these cases can be the backcloth of the criminal acts.therefore the environmental factors such as the hisroty of trauma,emotional abuse,physical abuse,loss of parents or any kind of trauma which the pyche of every individual specially kids cannot contain or maintain,might be the background for these kind of acts.
To be integrated and have a mulitifactorial theory we caanot negate the importance of genes collaborate with environment which some genes and chromosomes can be triggered in speficic situtations or by particular events, leading to intention of antisocial behaviors.
In conclusion its essential to keep in mind that every act of individual should be personalized and be interpreted based on the history and the unique lived experienced of them