CUERO, Tex. UP) - A Karnes County fanner. August Styra, 37, charged with the murders of two elderly Garfield, Tex., residents, has repudiated his confession to the crime, it was revealed yesterday.Harper Morris, sheriff of Karnes County, said Styra to!d him Tuesday “I didn’t kill them.” and that he had confessed because he feared revenge from three persons whom, he said, were actually re-sonsible. jStyra, the father of two children, j is charged with the deaths of Er-win Richter. 67, and his sister, Miss Emma Richter, 65, whose i charred bodies were found in the j I burned-out ruins of their home last!E •. - • — •“ x‘June 22. The home burned the previous night. I Morris said a lie detector test given Styra in Austin Monday j showed he was telling the truth ini denying knowledge of the crime, i but added that a possible mental | condition might prove the test worthless.He said Styra, who has a police record, has been treated for men-1 tal illness.Police, aroused by suspicious circumstances in the death of the brother and sister, arrested Styra Jan. 21. He has been held without I bond. No date has been set for his appearance before a grand jury. 1