A homicide investigation is underway after a man found with serious injuries yesterday in Clearlake Oaks died. According to the Lake County Sheriff, the middle-aged Caucasian man was located near Clark’s Island and E. State Hwy 20 in Clearlake Oaks. He was unconscious and had injuries to his head and a puncture wound to his abdomen. He was transported to Adventist Health Clear Lake, where he succumbed to his injuries.