Tech For The Student Section??

[Gargil]

A Boys Varsity game between the 2 teams predicted to win the conference, big crowd. Near the end of the second quarter the Home team is shooting free throws and when he makes the first the student section (for home team) yells "SUNK IT", sounds like "suck it", there was also a cow bell sound,from the band that is gathering to play at half. The Lead goes to the AD who was standing in the area, and asks if he heard that and the AD says yes I took care of it (thinking he was talking about the cow bell). Player makes second freethrow, student section yells "SUNK IT" and the lead turns and gives the student section a technical foul. The home Team still won, but I was wondering if any of you have ever come across a situation like this?? I have never seen this happen. A technical on the Home Team crowd for heckling there own shooter?? I am still fairly new to Officiating and I am not sure what he used to justify his technical.