Wagner never led at any point. The Colonials (17-8, 9-3 Northeast Conference) shot 58.3 percent (14 of 24) while building a 42-27 halftime lead, scored five points in the first 9 seconds after halftime and still led 64-53 with 5:45 remaining.
Kenneth Ortiz and Latif Rivers, who each scored 22 points, led the Seahawks (13-10, 7-5). Rivers' layup with 13 seconds left brought them within 72-71. After Jones hit 1 of 2 free throws, Ortiz's layup with 6 seconds left forced overtime.
Two free throws by Jones and a layup by Johnson gave Robert Morris a 77-73 lead, and the Colonials hit all eight of their overtime free throws.
Robert Morris has won nine of its last 10 and clinched its eighth straight winning season.
The guard prospect was one of the top players at the annual Spiece Run N Slam event.
SMU has signed a second player from Australia, 6-foot-11 forward Harry Froling, to a national letter of intent. The Mustangs previously signed guard Tom Wilson from Australia.
There's nothing to suggest the Jayhawks won't end up atop the Big 12 for a 13th season in a row. But what about a return to the Final Four?