The 6-foot-4, 200-pound shooting guard averaged 25 points per game in three contests and was named to the All-Tournament team for his performance.
"He was just shooting, running the floor, dunking, doing the whole nine yards," McCluer North coach Randy Reed said.
Christ the King went on to win the tournament.
John scored 33 points and grabbed 10 rebounds in a 74-68 loss to Monsignor Pace from Opa Locka, Fla., on Saturday. He made 12 of 22 shot attempts, including four of seven 3-pointers attempted, and made five of six free throw attempts.
Against Champaign (Ill.) Central on Sunday in the seventh-place game, John scored 21 points in a 67-52 victory. He made nine of 17 shot attempts, missed both of his 3-point attempts and made three of four free throws. He also added six rebounds and five assists.
For the season, John is averaging a team-best 18.2 points per game and leads the Stars with his 20 3-pointers. McCluer North is 13-4.
As a junior John averaged 15.3 points per game as he helped lead McCluer North to the school's first basketball state championship.