So did the home fans, he noted: "It made a huge difference having everybody out here. Our Blue Crew was amazing."
Wheaton Academy (10-6) struck first on Tobi Sonuga's quick 3, but St. Francis countered on a 13-1 run led by Walker in the paint.
Brendan Yarusso's 3 from up top cinched an 18-6 Spartans lead after one quarter.
Like Walker said, they just kept going, scoring the first 6 points of the second quarter while Wheaton Academy committed 3 turnovers and missed three 3-pointers.
"We just let (Walker) keep punching us in the face, essentially," said Warriors senior forward Max Scharnowski, who scored a team-high 11 points. Marcus Bult added 9 points, 10 rebounds.
"We never bounced back," Scharnowski said. "We let them, the whole game, do what they wanted. They got all the 50-50 balls, they shot better than us. We allowed them to affect us mentally and you simply can't win when that happens."