It's a headline you don't see much. These guys were Columbia University students.
Notice, if you will, the only real crime--the crime with a potential victim--is entirely the result of prohibition. So much of drug violence revolves around getting people to pay debts. That's what happens when the business is illegal.
And just one more plug for Dorm Room Dealers by A. Rafik Mohamed and Erik D. Fritsvold. In an academic (but readable) fashion, they explain how this all works.