Mark 15:44

And Pilate marvelled if he were already dead
For death, by crucifixion, was a slow lingering death; persons that were in their full strength hung a great while before they expired; and the two thieves, which were crucified with Christ, were not dead when he was:

and calling unto him the centurion;
who was set to watch him:

he asked him, whether he had been any while dead;
he inquired of him, whether he was dead, and how long he had been dead.