Winfred Jordan, who coached Carter on the Atlanta Express AAU team, told the Atlanta Journal-Constitution that the 6-8, 220-pound power forward "enjoyed" his visit to St. John's.
"He thought the chance to play his home games at Madison Square Garden was unbelievable," Jordan said. "It's a big market, and Robert is a Southern kid [from Thomasville, Ga.], and those kind of things impress you."
According to Jordan, Carter got to know South Carolina coach Frank Martin when he tried out for the USA National 18-and-under team. Carter also played high school and AAU ball with incoming Maryland freshman Trayvon Reed.
That Maryland has the No. 9 recruiting class in the country coming in "makes it interesting," Jordan said.
Carter averaged 11.4 points and 8.4 rebounds as a sophomore. He missed 10 games with a torn meniscus suffered two days before the Yellow Jackets were scheduled to play at Maryland.