In 1979, a Seattle psychic who studied psychedelics went missing. Her brother suspected she’d been kidnapped by a cult, but other theories leaned toward the more mystical.  Learn more about your ad choices. Visit podcastchoices.com/adchoices

By 1973, the Boston Strangler was behind bars — but the killing wasn't over. The notorious murderer became the victim of a jailhouse homicide that has yet to be solved. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Between 1962 and 1964, Massachusetts was terrorized by a serial killer known as the Boston Strangler. Officers raced to discover his true identity and put an end to his murder spree. Learn more about your ad choices. Visit podcastchoices.com/adchoices

As babysitters became horror movie tropes, the real-life terror didn't slow down. In 1981, 15-year-old babysitter Kelly Cook was murdered by a man who called himself "Bill Christensen." To this day, his true identity remains a mystery. Learn more about your ad choices. Visit podcastchoices.com/adchoices

In 1953, 15-year-old Evelyn Hartley left to babysit a neighbor's child – but she never came home. Following a trail of bloodstains and clothing scraps, police led a fruitless search for her killer. Today, some believe Evelyn might've been the victim of one of the most terrifying serial killers in American history. Learn more about your ad choices. Visit podcastchoices.com/adchoices

A 1950 crime in Missouri may have inspired the urban legend about the babysitter and the man upstairs. When the Romacks returned from a night out, they found their 13-year-old babysitter, Janett Christman, dead in their living room — and police had reason to believe it was an “inside job.”  Learn more about your ad choices. Visit podcastchoices.com/adchoices

After a beachcomber discovered Starr’s body, it took two autopsies to determine foul play. Was Starr’s childhood abuser — and former mayor of Boston — behind her death? Did Starr decide to take her own life that night on the water, as some of her private letters suggested? Or did she get wrapped up with a notorious gangster in a blackmail scheme gone wrong? Learn more about your ad choices. Visit podcastchoices.com/adchoices

In 1931, the body of a young woman washed up on the shores of Long Island. Starr Faithfull had spent the Roaring Twenties chasing glamor, partying in speakeasies and sneaking aboard cruise ships. Her mysterious death became a tabloid sensation.  Learn more about your ad choices. Visit podcastchoices.com/adchoices

After more than a decade of setbacks and hurdles, researcher Silvia Pettem was finally able to confirm Jane Doe's identity, and it happened in the most mysterious of ways. Learn more about your ad choices. Visit podcastchoices.com/adchoices

In 1954, two college freshmen found the body of a young woman in a creek near Boulder, Colorado. Unable to identify her, police simply referred to her as Jane Doe. Over 50 years later, authorities were still unable to track down her name… or her killer. Learn more about your ad choices. Visit podcastchoices.com/adchoices