Now North Carolina is trying to get in the mix.
"We have had contact with them and basically we've had a few conversations about their needs and what has transpired with them," Billy Thornton, Marcus' dad, said on Thursday.
"It's kind of late in the process with us," he added. "He asked us to take a few days and think about it and I kind of reiterated that it was pretty late. That's kind of where we left it."
Although Thornton didn't completely rule North Carolina out, he did reiterate that they are well into the process, having just completed their four visits.
"We want to give them the courtesy of what we talked about," he said. "They asked us to think about it for a couple of days. But at this stage it is pretty late. Marcus wants to be able to go to full summer. A lot of schools start summer school during the first part of June."
"It's not an impossibility right now but we really do have to think about it and talk about it as a family," the elder Thornton added. "But it's probably not as likely given where we are in the whole process."
Despite the late entry, Thornton said the assistant he talked to – Steve Robinson – had done his homework on the 6-foot-7, 215-pound forward out of Atlanta (Ga.) Westlake.
"They had done some research and kind of talked to some people about Marcus so I do think they had done some homework. It's just kind of where we are in the process right now. But like I said to them we are going to think about it for a couple days as they asked us and then we are going to talk again. "
According to the elder Thornton, his son finished up his visits on Thursday.
"We went to University of Georgia on Monday and then we went to Georgia Tech today. They were all great visits. We have positive things to say about every situation."
"The University of Georgia, Georgia Tech, Texas and Alabama were the ones that Marcus had kind of zeroed in on. He's trying to make a decision next week, baring any reconsideration of anything."