OSAKA -- The partial remains of a female Osaka restaurant owner missing since late December were unearthed Wednesday and the man who led police to the site has been arrested in connection with her slaying, police said.Osaka Prefectural Police arrested Yoshio Ishida, 51, of Osaka's Minato Ward, on suspicion of murdering Eiko Kinoshita, owner of a restaurant in Ikuno Ward. Part of a dismembered body believed to be that of Kinoshita, 79, was discovered in a forest in Nara Prefecture on the basis of a statement made by Ishida, police said.Police are trying to identify the body and are questioning Ishida. Police also plan to question a woman who is on intimate terms with Ishida in connection with the case. According to investigators, Kinoshita was supposed to visit relatives at the end of December but failed to show up. The relatives reported her disappearance to local police Dec. 31 and asked them to look for her.Police suspected Kinoshita had been the victim of foul play after they entered her apartment. The results of their investigation indicated Ishida as a suspect. Police had been questioning Ishida about Kinoshita's disappearance on a voluntary basis for a number of days. They arrested Ishida when they discovered part of the body after he confessed to murdering her and burying the body in a mountainous area of Nara Prefecture.Kinoshita's neighbors said they witnessed her quarreling with a woman Dec. 29 and that she had not been seen since Dec. 30. Kinoshita's restaurant is located in a district of eating and drinking establishments some 800 meters from Shoji Station on the Sennichimae subway line.