The appellant, Jerry Ray Davidson, was found guilty by a jury of premeditated first degree murder and aggravated kidnapping. Thereafter, the jury sentenced the appellant to death based upon the finding of three aggravating circumstances: the appellant had previously been convicted of one or more violent felonies; the murders were knowingly committed while the appellant was engaged in committing a felony, i.e., aggravated kidnapping; and the appellant knowingly mutilated the body of the victim after death. The appellant received a consecutive twenty year sentence for the kidnapping conviction. On appeal, the appellant raises the following issues:
(1) Whether the trial erred when it denied the appellant's motions to change venue, strike the venire and grant additional peremptory challenges; (2) Whether the evidence is sufficient to sustain the convictions; (3) Whether a witness for the prosecution should have been allowed to offer opinion testimony; (4) Whether the trial court correctly instructed the jury about the unanimity of its verdict; (5) Whether the jury's verdict is proper; (6) Whether the prosecutor has unlimited discretion in seeking the death penalty; (7) Whether the death penalty is imposed in a discriminatory manner; and (8) Whether Tennessee courts employ an adequate proportionality review. Having thoroughly considered all of these issues and having fully reviewed the appellate record in this case, we affirm the convictions and the sentence of death imposed for first degree murder.