Defendant had appealed a life term handed down by Osaka District Court
TokyoReporter
Suspect said, 'I had no intention of killing her'
Suspect said, 'I just stopped caring about my life'
One woman said, 'I was put into a car and forcibly brought here'
Prosecutors admitted there were 'inappropriate points' in the interrogation
Knife was found in the girl's bedroom along with her body and her boyfriend's
Suspect said, 'I don't remember'
Operation raked in ¥800 million in revenue over past decade
Incident has caused immediate disruptions to the rail network
Suspect's smartphone included a video clip showing the girl's thighs