when richard dixon heard them, he knew it was trouble. >> i knew it was a grave situation. >> reporter: he ran to a neighbor's house who had a kayak. that man paddled out to help two men flailing in the water. at the same time, two doors down, this man jumped in his boat and reached one of the swimmers. >> it was hard to get the guy on the boat because he was so panicky. >> reporter: his friend never surfaced. >> we could have possibly saved the other gentlemen. >> reporter: they were fishing when they decided to cool off in the water. >> they jumped overboard. one of them got away from the boat. >> reporter: rescue crews rushed to the scene. dive teams were out here on the water until late sunday night and back at it again at 8:00 a.m. monday morning. crews are using helicopters, sonar, and police dogs, but till no sign of the missing boater. >> i've never had to witness anything as tragic as this. >> reporter: even more heartbreaking, what was found inside the men's boat. >> the boat drifted straight toward my pier. i looked inside and i saw two life preservers. >> reporter: tools th