Oweh drained 433 points and grabbing 191 boards in 29 tilts (14.9 ppg and 6.6 rpg) in the 2019-2020 campaign at Rutgers Prep.
Oweh currently owns 18 Division I hoop offers.
Seton Hall's offer is Johnson's second Division I offer, with his first coming from St. John's , according to VerbalCommits.com.
The Newark, N.J., guard averaged 7.1 points and 2.4 assists per game, while shooting 46 percent from the field and 34 percent from three-point land (13-for-38) during his final prep season with the Celtics.
The No. 82 overall high school prospect in the 2022 Top 150 class, Cuffe Jr. dropped in 113 points and grabbed nine boards in eight tilts played for the Blair Academy Bucs last season.
The 6-foot-10, 200-pound senior averaged 18.3 points, 16.3 rebounds, and 4.8 blocks per game for Dover (19-8), with a total of 495 points and 440 rebounds for the season last year.
The 6-foot, 180-pound point guard enjoyed a terrific season as a junior, dropping in 411 points, dishing out 254 assists, grabbing 103 rebounds, and blocking 30 shots in 29 tilts in 2019-20.
Hicks, a three-star player, drained an amazing 579 points and grabbed 220 rebounds in 29 games as a junior for the Fighting Irish.
The six-foot-four point guard enjoyed a tremendous sophomore season, as he drained 389 points, collected 113 rebounds, and dished out 140 assists in the 2019-20 season for the Trojans.