The four types of serial killers include Hedonistic (compelled to kill for the thrill, financial gain, or sexual gratification), Power/Control (compelled to kill to gain complete control and power over the victim), Mission (motivated to kill by revenge or hatred for a certain group of people, consider themselves to be “avenging angels” or “cleansers”), and Visionary (they suffer from some sort of psychosis and may believe that God or demons is commanding them to carry out the killings).

Infographic by: www.smartadvocate.com