Mark "Action" Jackson was the greatest assist man in St. John's history.
Over the course of his four seasons with the team, he totaled 738 assists. Named to the BIG EAST All-Rookie team his first season, Jackson dished out 108 assists as a freshman.
He was the "sixth man" on St. John's Final Four team, ranking third on the team in assists with 109 and second in field goal percentage with .564. He emerged as one of the premier point guards in the nation his junior season, dealing a NCAA record 328 assists. His 150 assists in BIG EAST games was also a league record. Jackson proved to be a capable scorer as he averaged 11.3 points per game.
He was named first-team All-BIG EAST and All-Metropolitan and was an AP honorable mention All-American. In his senior season, Jackson was named the BIG EAST Conference's Defensive Player of the Year. He was a second team All-America selection by AP, UPI and Basketball Weekly. He was the co-recipient of the Haggerty Award given to the MVP of the Metropolitan area and was a first-team All-BIG EAST selection. Jackson averaged 18.9 points per game his senior season and finished his career with 1,328 points.