The research used a theoretical framework provided by a model that postulates that homicide is positively related to stress factors and negatively related to support systems. The 11 stress indicators and 3 support (solidarity) indicators were derived from surveys of Israel's urban population. Results provided partial support for the model regarding stress indicators and substantial support regarding solidarity indicators. A comparison between this study and one conducted from June 1967 to August 1979 revealed that economic stress had the most permanent and consistent effect over time on homicide. The effect of social solidarity on homicide was stable over time, but it changed in intensity. The effects of political and security-related stress on homicide were inconsistent over time. Tables, figure, notes, appended description of variables, and 54 references (Author abstract modified)