The United States Supreme Court has held that the sentencing authority in capital punishment cases may not refuse as a matter of law to consider evidence offered in mitigation of the sentence of death.
Eddings v. Oklahoma, 102 S. Ct. 869 (1982).
James F. Risoleo,
Constitutional Law - Eighth and Fourteenth Amendments - Capital Punishment - Mitigating Circumstances,
Duq. L. Rev.
Available at: https://dsc.duq.edu/dlr/vol21/iss2/15