From eerie disappearances to unexplained phenomena, some mysteries remain unsolved despite years—or even centuries—of investigation. Here are some perplexing cases that still have people ...

Violin teacher Constance Meyer’s chronic hacking cough was driving other people crazy. The mother of a new student figured ...

A story of violence and mysteries that have never been clarified. Gisello Orrù had left Carbonia many years ago. He had moved to Friuli. In Pordenone, after having done various jobs, in recent ...