Japanese police plan to charge an American civilian worker at a US military base with murder in connection with the death of a woman in the southern prefecture of Okinawa.
Kenneth Franklin Shinzato has already been charged with abandoning the body of the 20-year-old Japanese woman in Onna village in late April.
The 32-year-old suspect was arrested on May 19th.
Okinawa police plan to serve a fresh arrest warrant on him for murder on Thursday, when the detention period for his initial arrest expires.
Shinzato is an American civilian employee of the US Kadena Air Base, and a former US Marine.
Investigators say they discovered traces of the woman's blood in Shinzato's car. They also say they found her house key abandoned near where the car was spotted on a security camera.
Police say Shinzato initially admitted to strangling the victim and stabbing her with a knife, but has since refused to say anything.
Shinzato also reportedly told investigators that he had struck the woman with a club-like object and raped her.