"I was undecided," said Lawrence. "I didn't know what to do. We talked it out and realized that St. John's was the best place for me to move."
Lawrence was considering attending prep school after fielding offers from UNC-Greensboro, Massachusetts, Central Connecticut State and Eastern Kentucky.
Last season, he averaged 14 points and 6 assists for the PSAL champions. He was the MVP of the championship game when Lincoln, which featured Sebastian Telfair, defeated Cardozo.
"Everybody wants to play in Madison Square Garden."