You don't really need to "revive" that person. It's the same as if you had someone whose "real identity"¹ is unknown. I don't think they would have any problem to trial inmate #123 or the guy who claims to be Abraham Lincoln.
If instead of Abraham Lincoln (dead 1865), it's John Smith (dead Dec 2020) the one he claims to be, you would have the benefit of modern records of him (the crime scene shows the fingerprints, ADN, etc. of dead John Smith) but hey, here is another guy whose fingerprints also match those of the crime scene! So you could trial them.
It would seem preferably for them to be declared legally dead after being trialed for the crime (see e.g. Maggie Dickson), although in that case I still don't think it would be in their interest to be recognized as that same person.
¹ And what's a "real identity", anyway?