Answer: Most likely most people who are able to kill another human being do have neurological issues, as a study back in the 80's conducted on serial killers such as Ted Bundy, Charles Manson, Ed Kemper, etc, via the brain scans it showed very common similarities within the brain with all of these infamous serial killers, however nowadays you dont see the term serial killer unless youre watching a documentary, nowadays people due to lack of gun restrictions, and various mental diseases we over look constantly, anyone with a firearm can walk into a crowded place to kill people, rather ban in the 60-80's killers planned out their kills, maybe its a new generation of serial killers, having more access to deadly weapons as other previous generations.
