In this matter and in State v. Biegenwald, 106 N.J. 13 (1987), also decided today, the defendant has been convicted of murder and sentenced to death. In their appeals, both defendants attack the constitutionality of this states capital punishment act (L. 1982, c. 111) under the federal and New Jersey Constitutions. They also contend that various trial errors warrant reversal of their convictions and their sentences.