RJ Luis went for 22 points and 8 rebounds and Zuby Ejiofor had 15 and 9 for St. John’s (16-3, 7-1 Big East), which has won five straight and is poised for the program’s first NCAA Tournament main-draw bid since 2015.

“It was nice to come back and get a win, despite all the boos and stuff like that,” Richmond said.

St. John’s defense put the squeeze on standout Seton Hall wing Isaiah Coleman, who tallied 11 points and six boards but shot just 1-of-12 from the field. A bad game for the Hall got worse when starting guard Chaunce Jenkins (11.3 ppg) limped off the court shortly before halftime and did not return due to a hamstring injury.