HOUSTON, Texas (KTRK) -- For more than half a century, chilling questions have lingered: Were there more victims of Houston's notorious "Candyman," Dean Corll, the serial killer whose crimes predated even the term "serial killer" and if so, who are they? On a recent Tuesday night, family members, friends, and true crime enthusiasts crowded into Murder By The Book bookstore to get answers. "There's still a reason to tell this story because there are still people like this out there, and teenagers need to know," said investigative journalist Lise Olsen in an interview prior to the launch of her new...