A week ago today, the Los Angeles Times published an investigative story about the former dean of USC's Keck School of Medicine.
It presented evidence that Carmen Puliafito had engaged in a pattern of illegal drug use and sometimes partied with a group of drug users in his USC offices.
The Times says it began sending questions about him USC officials more than a year ago - and says administrators never responded.
Then, this weekend, the University finally acted. It fired Puliafito and banned him from campus, and hired a law firm to investigate.
But there are questions about why USC took so long to act.
Take Two spoke with Robert Tranquada, who served as Dean of the Keck school from 1986 until 1991.
"I had no clue to any of this going on… I just was totally, totally surprised. I really cannot believe that something like this could happen."
Dr. Tranquada says he hopes the investigation results in more information.
"I think we really do need to know the details of what transpired during this time. And I must say from what i have read… I can’t tell with any precision as to who knew what when, and I really think we need to know that before any judgements [on other USC officials] can be considered."
To listen to the full segment, click the blue play button above.