Authorities allege that the drug business was passed down through the fraternity, handed off by brothers who were graduating or studying abroad.
Some Penn State students are upset because they were not alerted by the university, and the university has responded.
Three people are dead, including the suspected gunman, and two others are hospitalized after a shooting spree that began in a bar and ended in a home near Penn State University.
Another 12 students have been charged in the hazing death of Penn State fraternity pledge Timothy Piazza.
A Penn State student has been jailed on charges he set a small fire in the stairwell of his girlfriend's dormitory in hopes it would trigger an alarm and annoy her.
