Joan Risch

On October 24, 1961, 31-year-old Joan Risch, a housewife and mother of two, vanished from her home on Old Bedford Road in Lincoln, Massachusetts. Her husband Martin was away on a business trip, and her two children—a four-year-old daughter and a two-year-old son—were at home. When a neighbor checked on the Risch home in the afternoon, she found the children alone and a trail of blood leading from the kitchen through the garage to the driveway.

The kitchen floor was smeared with a significant quantity of blood—investigators estimated half a gallon—and there were signs of a struggle. The telephone had been pulled from the wall. A wastebasket containing bloodstained paper towels and Joan's bloodstained clothing was found in the kitchen. Several witnesses reported seeing a woman matching Joan's description walking along Route 2 near her home that afternoon, apparently disoriented and with blood on her clothing, but she was not approached.

The investigation revealed an intriguing detail: in the weeks before her disappearance, Joan had borrowed at least 25 library books about murders and disappearances, including titles about people who had vanished and assumed new identities. This led to theories that she had staged her own disappearance, but the large amount of blood found argued against a voluntary departure. Other theories included foul play by an unknown assailant, an accident followed by disorientation, or a connection to Joan's mysterious past—she had been adopted and raised in affluent circumstances.

Despite extensive searches of the surrounding woods, ponds, and wells, no trace of Joan Risch has ever been found. No body, no weapon, and no conclusive evidence of what happened to her. The case has been featured on numerous true crime programs but remains unsolved more than six decades later.