Subscribe
Buildings are seen in Japan.

Japanese prosecutors on Dec. 24, 2025, charged a U.S. sailor with negligent driving resulting in death followingn a deadly collision in April 2025. (Akifumi Ishikawa/Stars and Strip)

YOKOSUKA, Japan — Japanese prosecutors indicted a U.S. sailor last week on charges stemming from a deadly motorcycle collision earlier this year. 

Mark Paul Paloay Callos, 32, was charged with negligent driving resulting in death, a spokesman for the Yokosuka Branch of the Yokohama District Public Prosecutor’s Office told Stars and Stripes by phone Thursday.

Police allege Callos made a right turn April 27 in Yokosuka’s Heisei neighborhood and collided with a Japanese motorcyclist, Shinji Takahashi, 47, in the intersection. 

A spokesperson for Naval Forces Japan could not be reached Monday for further comment.

Takahashi was pronounced dead less than an hour later at a nearby hospital. Police on Dec. 9 recommended prosecutors charge the sailor, who is stationed at Yokosuka Naval Base, a Yokosuka city police spokesman said by phone Dec. 12. 

Prosecutors, not police, decide formal charges under Japan’s criminal justice system.

If convicted, Callos could face up to seven years imprisonment and a maximum fine of about $6,000, according to the Japan Legal Support Center website.  In addition, individuals at fault in such situations typically pay a large sum to the family as a measure of atonement.

Takahashi’s family filed a civil lawsuit against the sailor last week seeking roughly $772,000, according to their attorney, Masahiko Goto. The lawsuit lists Takahashi’s three sons, his mother, two brothers and his partner as plaintiffs.

Their suit alleges serious negligence and seeks compensation for the loss of a family member, according to a copy of the filing provided by Goto.

author picture
Joseph Ditzler is a Marine Corps veteran and the Pacific editor for Stars and Stripes. He’s a native of Pennsylvania and has written for newspapers and websites in Alaska, California, Florida, New Mexico, Oregon and Pennsylvania. He studied journalism at Penn State and international relations at the University of Oklahoma.

Sign Up for Daily Headlines

Sign up to receive a daily email of today's top military news stories from Stars and Stripes and top news outlets from around the world.

Sign Up Now