Boy, 8, found his mother collapsed in kitchen of residence on Thursday
TokyoReporter
Suspect said he wanted to engage in 'mistress contract' with victim
Defense argued defendant suffered from gender identity disorder
Suspect claims to work in 'mistress industry,' admits to substantial plastic surgery
Man believed to have strangled wife before hanging himself
Driver of train said man appeared to be 'unsteady on his feet'
Suspect claimed to be yakuza
Police suspect person was living inside
Police treating case as suicide or the result of foul play
Suspect told police, 'I have no recollection whatsoever because I was drunk'