The Matsue branch of the Hiroshima High Court upheld on Thursday capital punishment for a woman convicted of killing two men in 2009, based mainly on circumstantial evidence.
Presiding Judge Ihei Tsukamoto concurred with the lower court's ruling in 2012 that questioned the authenticity of her claims of innocence.
Miyuki Ueta, 40, a former bar worker, used sleeping pills to drug truck driver Kazumi Yabe, 47, who she later drowned in the ocean in 2009. She drowned electronics store owner Hideki Maruyama, 57, in a river that October. She owed money to both.