According to Bloomberg, the ADA offered each of the students arrested in the December drug bust plea bargains, and each of the students turned them down. David rejected an offer of one year in prison, the other four rejected offers for five years probation. The defense attorneys sought to divert their cases to treatment, rather than enter a guilty plea. The prosecutor rejected that request.
Bwog was on the scene, and will post a full summary shortly.
Update, 3:47 pm: Our full summary of the court appearance is up! Peruse it.