From 32 floors, A .22 rifle could lob plenty of lead pellets into a crowd at that distance and cause some issues.
You may be underestimating that ole .22LR
Watch this at 300 yards.
https://www.youtube.com/watch?v=xAkOzr6cDx0
Israeli IDF use .22 in crowd control situations, attempting to inflict less than lethal force on rock throwers etc.