What are the common characteristics of a serial killer?

Dr. Joni Johnston, forensic psychologist, private investigator, and crime writer, joins Karen Conti to discuss true crime and why we are obsessed with it. Dr. Johnston talks about common traits found in serial killers, whether there are ways to prevent someone from becoming a serial killer, the Macdonald triad and whether it has been proven, distinguishing between a psychopath and a sociopath, assessing if someone may recommit a crime if they are released, and investigating alleged suicides that are later deemed to be murder.

Dr. Johnston also comments on victimology, Samuel Little’s confession to 93 murders, and why there are fewer serial killers today.