On the Case with Paula Zahn

Silenced (4x1)

Air date: Apr 17, 2011

Debbie Culberson's battle to determine the fate of her daughter Carrie. In 1997 Vincent Doan, ex-boyfriend of the 22-year-old, was sentenced to life in prison for kidnapping and murder, but his victim's body was never recovered and Debbie is intent on finding its location