The State executed 62 people during that period, with peaks of 8 and 6 executions in 1938 and 1933 and no executions in 27 of the years. The analysis used three periods: (1) 1933-1945, in which executions were used most often; (2) 1945-1966, when executions were threatened but used less often; and (3) 1966-1980, which included both the effects of the threat and the abolition of the death penalty. None of the following four analytic approaches showed deterrent effects of executions: (1) graphs of different eras; (2) differences of mean homicide rates for threat, use, and abolition eras; (3) correlations, and (4) a multivariate time-series analysis. Thus, the death penalty does not deter homicide in Missouri. Figure, tables, and 41 references.