KNOWLTON - A man's body has been found in Lake Du Bay, where divers were searching for a missing boater. Marathon County sheriff's Lt. Kevin Gray says a fisherman found a man's body around 3 p.m. Tuesday. Gray says they are trying to determine whether the man is a 52-year-old Weston man who went missing Sunday afternoon. That's when Patrick Winnie and his friend Kara Estrada went for a pontoon boat ride. At some point, both were in the water and Winnie helped Estrada into the boat. When she looked back, he had disappeared. Tuesday was the third day Marathon County divers searched a portion of the 6,700-acre lake. (Copyright 2008 by The Associated Press. All Rights Reserved.)