finding no prejudice where communication between juror and witness, during which juror told witness he had a good memory, was “terse, fortuitous, and devoid of substantive content” | referring to rescinded “relaxed waiver” rule utilized in DeJesus that allowed reviewing court to address merits of waived claims in capital direct appeals | referring to rescinded “relaxed waiver” rule utilized in DeJesus that allowed reviewing court to address merits of waived claims in capital direct appeals | “[A] party complaining, on appeal, of the admission of evidence in the [c]ourt below will be confined to the specific objection there made” | “[A] party complaining, on appeal, of the admission of evidence in the [c]ourt below will be confined to the specific objection there made.”