Ronald M. Holmes is the coroner in Louisville, Kentucky, a post he has held since 2003. Before he was elected to this position he was a professor of justice administration at the University of Louisville for 28 years. He has written numerous books on serial murder, mass murder, suicide, homicide, sex crimes, psychological profiling, and the criminal justice system. He is also the author of scores of articles in professional journals on related criminal justice topics.Stephen T. Holmes is associate dean and associate professor of criminal justice at the University of Central Florida. Prior to this position, he was a social science analyst for the National Institute of Justice in Washington, DC. He has written 8 books and more than 15 scholarly articles dealing with policing, drug testing, probation and parole issues, and violent crime. He received his doctorate from the University of Cincinnati.