Suspects are believed to have been collecting their father's pension since last December
TokyoReporter
Police found the skeletal remains lying face-up inside a room on the second floor of the residence
Body was clothed only in green pants, police said
Body was clothed in a blue shirt, blue jeans and sports shoes
No personal articles were found at the scene
Resident of the building heard a loud sound just before finding the man collapsed outside
Man said that reporting his mother's death 'was a hassle'
Suspect said, 'I wanted to see her surprised reaction'
Manager of Kameari Kadoebi said, ‘This is how we do business’
Police found the body of Mitsuru Okano in Higashihiroshima City on August 26