Entering Friday night’s NCAA Division III Tournament semifinal against Colby College of Waterville at the Herb Brooks Arena in Lake Placid, N.Y., St. Norbert’s College of Wisconsin had outscored its opponents 42-8 in the first period. That held true as the Green Knights scored twice in the first 2:35 en route to building a 3-0 lead and then received a crucial shorthanded goal from Tanner Froese with 35 seconds left in the second period to upend the Mules 4-3. St.