The police arrested one of their own on Saturday in connection with the 2010 slaying of an elderly couple in Toyama Prefecture.
Takeshi Kano, 54, assistant police inspector at the Toyama Prefectural Police, was arrested on suspicion of strangling Saburo Fukuda, 79, and his 75-year-old wife, Nobuko, on April 20, 2010, at their home in an office building and setting fire to the residence afterward, the police said.
Kano was quoted as admitting to the crime, saying he set fire to the building, owned by Fukuda, to destroy evidence.