A man is dead after an incident on Lake Winnebago Saturday afternoon. Officers and paramedics responded at 4:48 p.m. to the area east of Lone Willow Island near Hidden Harbor Marina, where a man who had been in the water was unconscious. A passerby brought the man ashore. Paramedics took the man to a local hospital where he was pronounced dead. The man had been on a personal watercraft, and no witnesses saw him enter the water. Law enforcement does not meet know if the man fell in and the incident is still under investigation.