US Marine Arrested in Suspected Okinawa Robbery-Murder

The employee unlocked the door at the Naminoue Crystal Hotel in Naha’s Wakasa district after Anna Yagi, 39, of Naha, failed to leave by the designated checkout time. That failure brought a staff member to the room. The employee unlocked the door and found Yagi unconscious.

Emergency services were called around 4:20 a.m. on Saturday, October 3, 2026. Yagi was pronounced dead at the scene. Police placed her death between 2:10 a.m. and 4:17 a.m.

Okinawa prefectural police had a body at the hotel, a Naha woman past checkout, and a death timed in those early hours.

Police pulled the hotel surveillance. The cameras showed a man and a woman entering the Naminoue Crystal Hotel together. Later the same cameras recorded the man leaving alone, carrying belongings that investigators said were hers. Police alleged a wallet and a backpack, or another item with them, had been taken. Those belongings turned up afterward scattered around the hotel.

Before any name attached to the image, the description went out from the footage alone. The man had a shaved head or a close buzz cut. He wore a black tank top, three-quarter-length pants, and white sneakers. Authorities treated the unidentified man as someone who could have information about what had happened inside the room and opened an urgent search for anyone matching that look.

The hunt ran on the sequence the cameras had fixed: the pair walking in, the man walking out alone with the items in hand, the scattered belongings recovered on the grounds. Late Saturday night the search was still open when a police officer moved through Naha’s entertainment district.

He stopped a man walking alone on a street there. The officer questioned the man where he stood and then detained him. Police identified him as Lance Cpl. Devin Jacob Ballard. He was 20 years old. He was a United States Marine stationed at Marine Corps Air Station Futenma. Lance corporal is an enlisted rank in the Marine Corps, the step above private first class and below corporal. In Japanese and regional reporting from Kyodo, Nikkei, and dimsumdaily, the given name also appeared as Davin rather than Devin.

Okinawa prefectural police arrested Ballard on suspicion of robbery and murder in the death of Anna Yagi. The detention took place late Saturday night; the arrest was recorded early Sunday. Ballard has denied the charges. He stayed in the custody of Okinawa prefectural police.

Ballard was assigned to the III Marine Expeditionary Force, the Marine Corps formation based on Okinawa for operations across the Indo-Pacific. Marine Corps Air Station Futenma sits in Ginowan, about nine kilometers north of Naha. The air station is a major hub for Marine aviation in the region. Its mission includes supporting III MEF and American, joint, and allied forces while maintaining readiness to answer crises and contingency operations. Okinawa holds a dense United States military presence, home to III MEF and Marine Corps Installations Pacific along with a network of Marine installations that keep thousands of American service members stationed there.

A Marine Corps spokesperson told the Daily Mail, “We are actively cooperating with Japanese authorities in response to allegations of serious criminal actions by a Marine assigned to the III Marine Expeditionary Force. We extend our deepest condolences to the victim's family and friends. The Marine Corps takes these allegations very seriously and expects every Marine to adhere to the highest standards of behavior. The Marine is in custody of local authorities while the investigation proceeds.”

1st Lt. Tyler Thomas said the Marine remained in Japanese custody. He added that there was “no further information to release at this time.”

By Sunday morning the case had reached Tokyo. Japanese Vice Foreign Minister Takehiro Funakoshi lodged a strong protest with U.S. Ambassador George Glass. The Foreign Ministry said the protest concerned the Marine’s alleged involvement in the case. In their telephone conversation, Glass told Funakoshi that the United States would fully cooperate with the investigation and take all measures it could to prevent a recurrence.

Glass posted on X that he had called Okinawa Gov. Genta Koja, “offering our sincere condolences and pledging full cooperation as the investigation continues.” U.S. Embassy Tokyo wrote on X the same day: “We are aware that a US service member is in custody following the death of a Japanese national in Okinawa. We extend our sincere condolences to the victim's family.” The post tagged III MEF. The embassy said the United States was communicating and cooperating with the Government of Japan and local authorities.

Okinawa prefectural police said they would investigate the case in cooperation with the U.S. military. The exact circumstances surrounding Anna Yagi’s death had not been disclosed. It was also unclear how Lance Cpl. Devin Jacob Ballard and Yagi knew one another. Police did not provide further details about her death, the circumstances surrounding the alleged robbery, or what had led investigators to Ballard. Further enquiries were under way to establish the full sequence of events at the Naminoue Crystal Hotel.

On October 4, 2026, police officers conducted an investigation near the hotel in Naha’s Wakasa district where Yagi had been found. Ballard stayed in the custody of local authorities while officers worked the scene.