An American minor was handed an indefinite prison term of between five and 10 years Tuesday for killing an Irish exchange student in May last year.

The 19-year-old defendant, whose name was withheld because he is a minor, was found guilty by the Tokyo District Court of strangling Nicola Furlong, 21, in his Shinjuku hotel room with "intent to kill."

In handing down the sentence, presiding Judge Masaharu Ashizawa said the defendant deserves grave punishment and harshly criticized his testimony, which portrayed the victim as a promiscuous drug user.