Police believe woman entered the wrong unit and died due to an unspecified illness
TokyoReporter
Decayed body of the man was found hanged along a river in Adachi Ward last week
Case is being treated as the result of an accident or a suicide
Police are treating the case as the result of an accident or foul play
Suspect denied the allegations, telling police that he 'didn't do it'
Suspect was also accused of stealing the victim's driver's license
No reason for the non-prosecution was given
Suspect told police, 'I did it for my sexual desire'
Mother is believed to have died more than 10 days before the discovery, police said
Suspect said, 'I became frustrated when there was a child who was unteachable'