Scariest on Instagram: "In August 2023, Adrienne Vaughan, a 45‑year‑old American publishing executive and president of Bloomsbury USA, was on holiday with her husband and two children along Italy’s Amalfi Coast. The family had chartered a small speedboat to explore the scenic waters near the Fiordo di Furore, and Adrienne was sunning herself on the front deck as the vessel headed toward Positano. Around the same time, a 130‑foot sailboat with about 85 guests was nearby celebrating a wedding when