i kinda have a idea but don't know if adding that is possible.
what you could do is insted of just be in the voating screen they could stay around the body and maybe try finding clues for who the murderer is cuz most of the time when a body is found late it is a blind guess and there is nothing to even think about. I kinda just went through a overview of my idea if you like it and want to hear more i am free most of the time .