A submerged car was found near a man’s body in a rain-swollen creek in the North County community of Rainbow Monday morning, and swift-water rescue plan to search inside for a possible child victim. Firefighters and search-and-rescue crews started searching the area about 4:20 p.m. Sunday after nearby residents called 911 worried that a child had been swept away by the fast-moving creek, which flows behind the Rainbow Oaks Restaurant on Fifth Street.