Everyone who has translated what the group was saying when they found Stevens says they were happy that he was alive. Several reports say they took him to the hospital. A doctor at the hospital reports he tried to revive him and examined him. His body was picked up at the hospital by Americans to fly him home. But you think a crazed crowd of unarmed Libyans tortured and raped him and then took him to a hospital?
I don’t think the attackers took him to the hospital. He was brought in a car, clearly by people (probably security) who had gotten his body from the crowd, since Stevens was of no more use to them once he was dead and they had had their victory parade.