'Someone' in the Bible

And someone came and said to them, The men, whom you put in prison, are in the Temple teaching the people.

For before this there was Theudas, who said he was someone important, to whom about four hundred men gave their support: he was put to death, and his band was broken up and came to nothing.

And when the people saw it hanging on his hand, they said to one another, Without doubt this man has put someone to death, and though he has got safely away from the sea, God will not let him go on living.