is it possible for dead people to be investigated?

i can't seem to find any information from epicmafia and what such that was listed on the first post, or anywhere else for that matter?

didn't someone (mikey? i'll be damned if i'm going back to check through all the posts) a while ago say that there was a reason for investigating dead people?

how is that even possible? "yep, this guy sure is dead"? -_-