Ashlyn Upah Research paper Professor Gates Types of Serial Killers According to the American heritage dictionary a serial killer is “A person who attacks and kills victims one by one in a series of incidents.” You never know who could be a serial killer or a sociopath because these people are you friends, family, and co-workers. Serial killers come off as friendly, charming, and are good at convincing you into anything or convincing you that they’re telling you the truth. It’s hard to pinpoint