Watch : Celebrity Deaths 2026: Catherine O’Hara, Eric Dane & More Fallen StarsLaura Prepon is grieving a tragic loss. The That ‘70s Show alum shared that her family recently held a funeral for her brother Brad Prepon, who died unexpectedly last month at the age of 48. “This past weekend, we laid my brother to rest,” Laura wrote on Instagram Aug. 5 alongside throwback pictures with Brad. “He passed away suddenly from an unknown heart condition—it was a devastating shock.” “For those of you who knew Brad, I’m so happy he touched your lives,” she continued.