Dr Momina-tuz-Zobia

antisocial, psychopathic, narcissistic or paranoid personality disorder are common among murderers.

Forensic psychology is a subset of clinical psychology. Both forensic psychology and clinical psychology require a deep understanding of how the human brain works Despite their similarities, forensic psychology and clinical psychology differ in their objectives, work environments, and career paths. Clinical psychologists can expect to spend sessions with patients, discussing the issues they are facing and developing strategies to help them improve their well-being and mental health. Forensic psychology’s approach, on the other hand, is medico-legal, seeking to apply the principles of psychology to criminal justice

Killing: Broad term, involves murder, spree killing etc. Doesn't necessarily require a person to be sane or have an intention to kill. Homicide: A legal term for which intention and sanity are needed. These two conditions,if fulfilled,will turn a killing into a homicide and it will be punished by law. Murder: Murder is an unlawful killing.

You've nicely put in words. Thanks.