Home > Media & Platforms > TV The 42-year-old Discovery Channel star was found dead Saturday in a Washington river with an unspecified injury “Alaskan Bush People” star Matt Brown’s official cause of death was determined to be suicide, authorities confirmed Wednesday. The 42-year-old Discovery Channel star was found dead Saturday in a Washington river with an unspecified injury, his brother, Solomon Isaiah “Bear” Brown, confirmed . The Okanogan County coroner’s office added Wednesday that