Of course. What do you think? I think of the man on the cross who died along our Lord. Obviously the Father revealed the Christ to him, and he was converted:
One of the criminals who were hanged railed at him, saying, “Are you not the Christ? Save yourself and us!” But the other rebuked him, saying, “Do you not fear God, since you are under the same sentence of condemnation? And we indeed justly, for we are receiving the due reward of our deeds; but this man has done nothing wrong.” And he said, “Jesus, remember me when you come into your kingdom.” And he said to him, “Truly, I say to you, today you will be with me in Paradise.” Luke 23
I believe a careful look at the text shows repentance and revelation in the heart of one criminal.
Of course God can save whomever He wills to save at any point in their earthly life.
One thing can be said about one thief on the cross... No doubt about it he was OSAS... Can't deny that... To day you will be with me in Paradise!... Brother GlenCool