Shennan's kick capped off a 12 play, 65-yard drive for the Colonials, in which quarterback Tyler Brown accounted for 53 of the final 65 yards both rushing and passing.
Brown finished the game with 132 total yards for Robert Morris (2-3, 1-0 Northeast Conference), 79 passing and 53 rushing. Cole Blake added 89 yards rushing on 16 carries, including a game long 52-yard run.
Bryan Maley kicked two field goals to provide the scoring for Wagner, giving the Seahawks a 6-0 lead midway through the second quarter. Wagner held the lead midway into the third, when Shennan's second field goal tied it.
Matthias McKinnon ran for 139 yards on 22 carries to lead the Seahawks (0-4, 0-1 Northeast Conference).