The trial of accused killer Takuya Katsumata saw more than seven hours of his interrogation videos emerge, showing him flip-flop from one stance to another during the process.

On Tuesday, prosecutors at the Utsunomiya District Court demanded life imprisonment for Katsumata, who stands accused of murdering a 7-year-old girl in Tochigi Prefecture in 2005.

As there is no significant physical evidence and no murder weapon, all eyes are on how lay judges will view the credibility of his confession when the ruling is handed down on March 31.