Réponse :
1) The victim is M. Waddell as he is the body being performed an autopsy on.
2) The characters aren't sure that he has been executed or not: the cause of the death aren't certain.
3) The marks found on the corpse could probably be caused by an electric chair, however it might be due to human hands. The doctor can't certify totally that he died because of the electric chair.
4) The narrator is the doctor talking, so Kay Scarpetta.
5) The interlocutor is Nicholas Grueman.
6) The narrator is a former student of Nicholas Grueman.
Explications :
