Doubts and confusion about the identity of the Boston Strangler didn’t end with the death of lead suspect Albert DeSalvo. In fact, a small but determined group of family members and journalists continued to investigate the many unresolved questions surrounding the case--including the chilling possibility that some stranglers continued to live freely. In this episode, host Portland Helmich talks to Casey Sherman, nephew of victim Mary Sullivan (profiled in Episode 1) about his unlikely effort to exonerate DeSalvo. We learn about the existence of new forensic evidence, and about the strange, post-Strangler career of another major suspect: he moved to Michigan, and—perhaps coincidentally—a new series of murders began.