UCI officials said they handled the case with on-campus discipline, arguing that prosecution went too far.
"UC Irvine, which fully and actively supports the lawful expression of free speech, completed its disciplinary procedures in this matter last year and considered those sanctions sufficient," said school spokesman Rex Bossert. "We nurture a campus climate that promotes robust debate and welcomes different points of view."
Aminah Galal, 22, vice president of the Muslim Student Union at UCI, crowded around a computer with about five other students to read the verdict on screen.