Seven guns made by Tetsuya Yamagami, charged with the murder of former Japanese Prime Minister Shinzo Abe, were all lethal, a police witness said at Nara District Court on Thursday. The witness is a researcher at the Nara prefectural police department's forensic laboratory who analyzed the homemade guns. During the sixth court hearing of Yamagami's trial, videos of test firings conducted during the examination of the guns were played, with the 45-year-old defendant watching the monitor