This book deals with the problem of homicide in Angola and some of its psychological, legal-penal, criminological, victimological and sociodemographic characteristics. The aim of this research was to explore the variables described above by means of prisoner testimonies. Another purpose, achieved with study 2, was to ascertain the presence or absence of levels of aggression in these fellow citizens. In order to achieve our objectives, we used an ex post facto cross-sectional study of an applied and explanatory nature.