Unfinished Business

Who killed Michelle Lowe? That is a question facing Frank after Betty Lowe (Karen Allen), the victim's mother, interrupts a press conference he is holding on an unrelated matter. Despite the fact that a serial killer is serving time for her daughter's murder, in addition to the murders of three other young women, Ms. Lowe is convinced that her daughter knew her killer. Both Frank and Erin are reluctant to reopen the case, fearing it will jeopardize the other three convictions, until a witness in the Lowe murder indicates that the detective in charge coerced him to pick a certain photo out of a lineup. Meanwhile, Danny and Maria are trying to find an Army veteran who beat up his wife and kidnapped his son. Danny suspects the soldier has PTSD, and the case brings back painful memories of his own time as a Marine in Iraq.