The Texts That Came From Inside the House - Episode 32

The Flute That Played After She Vanished: The Disappearance and Murder of Robin Benedict

A sledgehammer wrapped in a blood-soaked jacket. A strand of dark hair pressed into the blood on the head. And neighbors reporting flute music drifting from Robin Benedict's apartment for days after she was last seen alive — when no one could say who was inside. The forensic science pointed to one man. The investigation stretched across four states. But Robin's body has never been found.

In this episode, we explore a Tufts Medical School professor's phone records placing him at a highway rest stop payphone minutes after a murder, brain tissue recovered from a windbreaker pocket that matched what was found in Robin's abandoned car, and a mended shirt seam that a wife identified — and then handed over to detectives herself. Was this the act of a man who lost control, or a premeditated plan built over months of obsession? The evidence and the confession tell two stories that cannot both be true.

Case Details

Victim: Robin Benedict, 21, graphic design background, sex worker, President Merit Scholar.

Date: March 5–6, 1983.

Location: Sharon and Mansfield, Massachusetts; Rhode Island; New York, USA.

Case Status: William Douglas pleaded guilty to manslaughter in April 1984 and was released in June 1993 after serving less than nine years. Robin Benedict's body has never been recovered.

Episode Key Points

- Neighbors reported hearing flute music and high-pitched singing from Robin's apartment for days after March 5th, 1983 — the night she was last seen alive — yet no one could confirm who was inside.

- Phone records show William Douglas used a payphone located directly across the highway from the rest stop where the murder bag was found, minutes before making two calls to his own home.

- Brain tissue recovered from the pocket of Douglas's windbreaker matched the decomposed matter found inside Robin's abandoned Toyota — a car with all identifying marks scratched off except the VIN.

- Robin's mother received a telegram claiming Robin was alive in Las Vegas, but knew immediately it was fake because Robin always signed family messages with her nickname "Bin Bin" — a detail only someone close would know.

Robin Benedict, Mansfield Massachusetts homicide, Sharon Massachusetts 1983, William Douglas Tufts professor, unsolved missing body, true detective, homicide, forensic science, criminal minds, murder, investigation, true crime English.