Homicide researchers have noted that information on specific types of homicide, particularly group homicide, is lacking. Using a sample of homicide incidents from urban areas, this research examined differences in lone versus multiple offender homicides. Through both bivariate and multivariate analyses, the victim, offender, and situational characteristics of these two types of events were compared. The results suggest that differences in lone versus multiple offender homicides do exist, with these differences being driven by the offender.