An amendment specifying additional mitigating factors to those provided in the Gekas amendment to include 1) the defendant's lack of a significant prior criminal record, 2) the offense was committed under severe mental or emotional disturbance, 3) one or more co-defendants of equal culpability will not receive the death penelty. The amendment declares that no provision of the bill should be interpreted as requiring a court or jury to impose the death penalty. The amendment also requires the General Accounting office to conduct a study of the costs of implementing the death penalty.