Suspect said of one victim, 'She signed a pledge to be a sex slave'
Posts published in “Osaka”
News from Japan’s third-biggest city
Defendant said, 'Sex businesses and porn videos alone weren't enough'
Mother suffered several broken ribs, police said
Suspect said, ‘I couldn't control my feelings’
Official said, ‘We would like to reiterate that going out is prohibited’
DVDs were sold for 300 yen each
Suspect denies the allegations: 'I went to the parlor, but I didn't do it'
Mayuko Inada was found dead inside her karaoke parlor on June 14
Woman had suffered stab wounds over her body, police said
Case is being treated as a result of foul play or an accident