Police believe the suspect targeted the couple's residence on three occasions
TokyoReporter
Boy told police, 'My parents attacked me while I was sleeping'
Since opening in 2013, estimated revenue totaled 8.87 million yen
Suspect allegedly fondled the body of a woman in her 30s inside the Keio Inokashira Line last month
Case is being treated as a suicide or the result of an accident or foul play
Suspected paid the girl 60,000 yen for sex last month, police said
Suspect recruited members to the ring via social-networking services
Victim had loaned money to the suspect, police said
In one case, a female customer of a store in Kobe punched the manager after she was told to wear a mask
One suspect said that the victim did not obey 'my instructions while we were living together'