During the temporary suspension on capital punishment from 1972-1976, researchers gathered murder statistics across the country. In 1960, there were 56 executions in the USA and 9,140 murders. By 1964, when there were only 15 executions, the number of murders had risen to 9,250. In 1969, there were no executions and 14,590 murders, and 1975, after six more years without executions, 20,510 murders occurred rising to 23,040 in 1980 after only two executions since 1976. In summary, between 1965 and 1980, the number of annual murders in the United States skyrocketed from 9,960 to 23,040, a 131 percent increase. The murder rate -- homicides per 100,000 persons -- doubled from 5.1 to 10.2. So the number of murders grew as the number of executions shrank. Researcher Karl Spence of Texas A&M University said:
"While some [death penalty] abolitionists try to face down the results of their disastrous experiment and still argue to the contrary, the...[data] concludes that a substantial deterrent effect has been observed...In six months, more Americans are murdered than have killed by execution in this entire century...Until we begin to fight crime in earnest [by using the death penalty], every person who dies at a criminal's hands is a victim of our inaction."