Back to the topic at hand.. here is a link with descriptions of some of the arrested:
http://www.fox6.com/media/news/f/3/7...ug_Dealers.pdf
Here are the fraternities listed:
Theta Chi
Phi Kappa Psi
Delta Sigma Pi
... and one of them says "SAE marijuana ring", but I don't know if that means Sigma Alpha Epsilon or SAE stands for something totally different.