Man had suffered head injuries
Posts published in “Osaka”
News from Japan’s third-biggest city
Body of victim found with about 10 stab wounds
Police suspect person was living inside
Suspect pretended to rummage through his bag
Suspect says he was 'confident drugs would help' with concentration on the road
Suspect beat victim over 20-minute period
Suspect planned to disembowel himself
Man in custody in separate case confessed to dumping the body
Suspect used 15-centimeter-long screwdriver to stab victim after he honked horn
Suspect allegedly grabbed victim's uniform and pulled him around station