Vanished (2)

Chad Baldwin, the boy who was kidnapped 18 years ago, shows up at Bobby's office, along with the woman who raised him, Allison Tucker. She claims that John Pierce ""left"" the boy with her, claiming that the child was his own son.
Allison Tucker agrees to testify as part of the trial against John Pierce, and can provide crucial testimony to keep him behind bars. But she is worried that she could also be charged as an accessory to the crime, so she first cuts an immunity deal with the district attorney's office.
After she testifies, however, unsettling news is uncovered. According to Allison Tucker's sister, Allison had a few miscarriages, and once threatened to ""go to a hospital and steal a baby."" Bobby believes that Allison Tucker is the real kidnapper, and that she brilliantly framed John Pierce. He shares this news with the Baldwins, who ask that Bobby not tell the district attorney the truth. They are desperate to restore their relationship with their estranged son, and are afraid of