although if I'm talkin about this episode I'm not sure if I can spoil what happens cause people don't know when not to read something that they haven't seen yet, then complain about it.
Spoiler wrote:Ok, after going over what the guy was saying about faxing people in, Kurono is the only one who is actually still alive. This is my opinion and I'm basing it off the fact that the girl Kishimoto was faxed into his arms and was said to have collapsed in the shower. So she's a copy, but Katou and Kurono's bodies were never found. However Katou dies and then is faxed back into the room by Gantz. So Katou was near the end and Gantz brought him back in from the brink of death. So the only person who doesn't have a copy in the real world is Kurono and thus is still 'alive'.