(Portland, OR) -- One man is presumed dead after reportedly being swept away in the fast-moving waters of Johnson Creek. A witness tells KATU-2 the man was helping homeless campers in the area in Southeast Portland yesterday morning when the water swept him away. Rescue teams responded to the area on reports that someone was spotted being swept downstream on an outdoor furniture cushion. Crews located the cushion downstream but still haven't found the missing man. The creek is running high and fast due to recent rain.