Albert Barnes' Notes on the Whole Bible - Mark 15:44
And Pilate marveled if - Wondered if he was dead, or wondered that he was so soon dead. It was not common for persons crucified to expire under two or three days, sometimes not until the sixth or seventh. Joseph had asked for the “body,” implying that he was dead. That he was, had been ascertained by the soldiers. See John 19:33. read more
The Pulpit Commentary - Mark 15:45
And when he learned it of the centurion, he granted ( ἐδωρήσατο ) the corpse ( τὸ πτῶμα ) to Joseph. read more