Dr. Ittai Gradel, the Danish antiquities dealer who sent shockwaves through the museum world by exposing thefts at the prestigious British Museum, has died at 61. His meticulous documentation of missing artifacts—gems, jewelry, and other treasures dating back to ancient civilizations—forced one of the world's most renowned institutions to confront embarrassing internal vulnerabilities. Gradel's journey began when he noticed suspicious items on eBay that matched missing pieces from the museum's collection. Despite initial dismissals, his persistent investigations eventually led to museum admissions of internal theft and subsequent legal actions. His legacy extends beyond his professional expertise, as he's credited with transforming how museums worldwide handle security and provenance documentation, ensuring cultural treasures remain protected for future generations.