A corner says a boater from Festus was drunk when he crashed his boat into a lock and dam on the Mississippi River last month. He and three others were killed. Toxicology tests show the blood-alcohol level in Scott Edwards’ body was .188, more than twice the legal limit of drunkenness. An investigator says the throttle was completely down, and the tachometer was at its maximum of 6,000 RPM when the wreckage was examined, indicating the boat was going full speed – 35 to 45 miles an hour – when it impaled itself on the dam.