The British army has serious questions to answer about the alleged killing of Agnes Wanjiru | Gaby Hinsliff

When the Kenyan woman died nine years ago, the army closed ranks - it's time to find out what happened and why

The last time 21-year-old Agnes Wanjiru was seen alive in public, she was leaving a hotel bar with two soldiers.

Her body was found by a hotel worker two months later, stuffed into a nearby septic tank, naked but for her bra. The mother of a five-month-old baby, Agnes was a hairdresser who turned to sex work to support herself and her daughter, and had gone to the hotel expecting it to be full of partying British soldiers. An inquest later concluded that one or more of them must have killed her.

Gaby Hinsliff is a Guardian columnist