The Role of Psychopathy and Sexuality in a Female Serial Killer INTRODUCTION. When you think of serial killers and gender most people will assume that the offender is male. Although not as common, female serial killers do exist.The FBI recently reported that of the 70-140 estimated serial killings a year only 5%-10% are committed by women which roughly comes to 4-12 people (Myers, 2005).he Role of Psychopathy and Sexuality in a Female Serial Killer INTRODUCTION. When you think of serial killers and gender most people will assume that the offender is male. Although not as common, female serial killers do exist.