3 FEB 26 1987 Thurs., Feb. 26, 1987 p. Man Charged In Killing?; Says He Got Messages ;! By E.S. Evans Of the Post-Dispatch Staff One of two men charged with killing a south St. Louis woman in April testified Wednesday that the other defendant had sent him several coded messages in jail telling him to say the death had been an accident. Michael W. Reed, of the 3800 block of Juniata Avenue in St. Louis, testified in St. Louis County Circuit Court against Stephen A. Buss, also known as Mike Anderson. Both are charged with first-degree murder in the drowning of Anna Marie Teson, 31, whose body was found in the Mississippi River on April 28. The prosecution is seeking the death penalty for Buss, 39. Reed testified that he has agreed to plead guilty to second-degree murder in return for a 15-year prison sentence. Buss, who lived on Ladue Court in Creve Coeur, bought and repaired old houses in the city of St. Louis and St. Louis County, the jury was told. Reed, 21, testified that he had done painting, drywall and other work for Buss for five years. He said Buss had disliked Teson, whom Reed described as a friend and neighbor of Reed's. Teson lived in the 3600 block of Missouri Avenue in St. Louis. Reed told the jury that Buss had threatened Teson. He gave this ac count of the last time he saw Teson: Buss had asked him to take Teson to Buss' house one night in early April on the pretext of burglarizing the house. Once inside, Buss accosted her, and Reed helped him tie her. up. "She asked him what they wef doing," Reed said, "and he said'yVou shouldn't be nosing in my business so far.' " ; Reed said he had left after he. had helped gag Teson with a rag, wrap her in a sleeping bag and put her in the trunk of Buss' car. Buss later told Reed he had taken her to the river and held her under water "until the bubbles stopped coming up," Reed said. The two men were arrested a few days after the body was found, and Reed told police he had left the victim with Buss. Reed said Buss later sent him four codes of scrambled letters and numbers written in a dictionary and a Bible and cryptic messages by mail and telephone from a mutual friend. Reed read in court the unsigned messages he had decoded. The messages urged him to change his story and say that Teson had been sniffing glue and dancing on the river bank when she slipped on the mud, fell in the water and disappeared, Reed said.