Tech beat then-No. 5 Kansas 69-64 Saturday.
As they did Saturday, many of the 5,898 students -- many who began camping out for tickets Tuesday afternoon -- swarmed the floor after the win.
The Aggies had a chance with 9.3 seconds remaining, but Zeno stole the inbounds pass from Dominique Kirk to Joseph Jones and was fouled. He sank both free throws to seal the win. He finished 13-of-14 from the line.
The loss snapped the Aggies 11-game Big 12 win streak, the longest in school history.
Tech (15-5, 4-1 Big 12) hit only one field goal in the final 10:11 of the game, but hit on 13-of-18 free throws. Darryl Dora hit a 3-pointer with 1:03 remaining to put Tech up 67-66, but Joseph Jones hit a free throw to tie it at 67.
Zeno scored 22 points and John Plefka added 17 to lead Tech.
Acie Law scored 26 points and Kirk had 12 to lead the Aggies (16-3, 4-1).
The last time Bob Knight won back-to-back games against teams ranked in the Top 10 was in January 2002, his first season in West Texas. The Red Raiders beat then-No. 6 Oklahoma State 94-70 and a week later Tech downed Oklahoma 92-79 when the Sooners were ranked sixth.
There were six ties and eight lead changes in Wednesday night's game.
Tech, which shot 57 percent from the field in the first half, got only seven buckets in the second half. Five of those were from 3-point range, though.
After leading most of the first half, Tech hit a dry spell and allowed the Aggies to come back to tie it 34-34 at halftime. But the Red Raiders weren't as patient as in their win over Kansas on Saturday. They weren't able to score inside and were forced to shoot from 3-point range, but with good results (5-of-10).
They hit eight of their first 10 shots and went up by 26-17 on a jumper by Zeno at the 8:14 mark. But Tech didn't score another field goal for nearly 6 minutes, allowing the Aggies to claw their way back. Texas A&M took its first lead at 33-32 with less than a minute remaining when Martellus Bennett scored inside.