So, what is it exactly that labels one a serial killer? Is it the amount of people that you kill, statistically speaking? What if the killing is within reason? Can the murder, or murders be justified? If the world is a better place without the people who are killed, is it really such a tragedy? A serial killer is typically a person who murders three or more people, usually in service of abnormal psychological gratification, with the murders taking place over more than a month and including a significant period of time between them. - https://en.m. Wikipedia.org In what would seem to be a cozy home