Dr. Mark Pettigrew is an award-winning researcher and criminologist who, after completing his doctoral research on death row incarceration in the United States, went on to publish ...view moreDr. Mark Pettigrew is an award-winning researcher and criminologist who, after completing his doctoral research on death row incarceration in the United States, went on to publish extensively on whole life imprisonment in England. His current research interests include sexual paraphilias and adult homicide, homicide dynamics, and crime scene behaviours of sexually motivated killers.view less