Three-quarters of Americans believe that an innocent person has been executed within the last five years and that conviction is resulting in lower levels of support for the death penalty, according to a study published in the February issue of Criminology & Public Policy. The study, conducted by researchers James D. Unnever of Radford University and Francis T. Cullen of the University of Cincinnati, found that support for capital punishment was significantly lower among both blacks and whites who believe the death penalty is applied unfairly. Only 68.6% of respondents support the death penalty among those who believe an innocent person has been executed, versus 86.9% of the respondents who do not believe any innocent person has been executed. When life in prison without the possibility of parole was offered as an alternative sentence for capital murder, less than half of all Americans who believe an innocent person has been executed supported the death penalty. The researchers analyzed data collected by the Gallup Organization to conduct the study. Criminology & Public Policy is an academic journal published by the American Society of Criminology.