Cole Robert Brock.

Colby had heard other students talking about the transfer, who was arriving that same day.
He looked out at the dining room door, and went out with Sam to see the student.

This was during the time he was studying. He had reached out to Sam and that there would be a new student. Transferred from Puerto Rico to Kansas.
He didn't like it when transfer students came. Since he and Sam were popular and maybe they would have problems.