EVANSTON—John Shurna scored 23 points and Juice Thompson added 18 as Northwestern won its fourth straight game, defeating Creighton 65-52 Sunday night.Thompson sank back-to-back 3-pointers and Shurna dunked off a feed from Thompson to give Northwestern its largest lead of the game at 55-39 with 8:35 remaining. The closest Creighton came after that was within 60-52 with 1:59 left.It’s the first 4-0 start for the Wildcats in 17 years.Antoine Young led Creighton with 18 points and a game-high five assists, while freshman Doug McDermott added 14 points. Kenny Lawson Jr. had 11 points and a game-high 12 rebounds for the Bluejays (4-2).NU built as much as a 13-point first-half lead on its way to a 40-32 advantage at intermission. Shurna had 14 points on 5-of-7 field goal shooting, which included two one-handed dunks, while Thompson was 5-for-5 for his 10 points.