Is R. Kelly the 'worst predator' in pop music history?

R&B and pop music star R. Kelly is yet again facing charges of sexual abuse. He's also the subject of three federal investigations, including one about sex trafficking. Yamiche Alcindor talks to journalist Jim DeRogatis, author of “Soulless: The Case Against R. Kelly,” about how DeRogatis first uncovered the alleged abuse, how institutions failed Kelly's victims and his "masterful" manipulation.