Donny Osmond is reacting to his older brother's death. Heartbreak struck the Osmond family on Monday when The Osmonds founding member Alan died at 76 years old. ABC4 Utah and KUTV reported he passed at around 8:30 p.m. and was surrounded by loved ones, including wife Suzanne Pinegar Osmond and their eight sons. As of now, his cause of death remains unclear, but Alan famously retired from performing four decades ago when he was diagnosed with MS. Now, a day after Alan's passing, his younger brother Donny is speaking out.