In January 2006, Nicole Pietz disappeared from her Seattle, WA home. Nine days later her body was discovered in a wooded field near the airport. A heartbroken mother launches a one-woman psychological warfare campaign to taunt her daughter's alleged killer, but can she get him to crack? “48...

The Hargans were a typical suburban family until one day, devoted mother Pamela was gunned down in her own home and her youngest daughter, Helen, was found dead upstairs. 48 Hours correspondent Peter Van Sant unpacks the web of evidence behind the Hargan killings, revealing motives of sibling...