A 21-year-old former Nagoya University student was sentenced Friday to life in prison for the 2014 murder of an elderly woman and attempts to kill a boy and girl while she was in high school.

In handing down the ruling sought by prosecutors, the Nagoya District Court said the woman was mentally competent, given that she was deemed to have acted on her own will when she committed the crimes.

The defense called for a not-guilty verdict, claiming her developmental and bipolar disorders made her incapable of judging right from wrong and controlled her behavior.