Prosecutors on Wednesday demanded the death sentence for Tomomasa Nakagawa, a former Aum Shinrikyo senior member accused of involvement in numerous crimes, including the 1995 sarin attack on the Tokyo subway system.

Lawyers for Nakagawa will give their closing arguments May 12, and the Tokyo District Court is expected to rule on the case in the fall.

During their closing arguments at the court, prosecutors charged that Nakagawa, 40, played a crucial role in a series of Aum crimes.