Bahamian police are investigating the killing of an American man who was working on a sailboat passing through the capital of the island chain.

Police Supt. Paul Rolle says the man was shot in the neck on a Nassau street during a robbery early Sunday. He says one person is in custody and detectives are searching for two others.

Police have not disclosed the slain man's identity. But sailboat captain Chris Shaw identifies him as Kyle Brauner.

Shaw says Brauner was 34 and from Chicago. He was a mate on Shaw's boat, the Liberty Clipper.

A police report says the victim was with three people when they were approached by gunmen. Rolle says the man was shot when he apparently tried to stop them from stealing a woman's jewelry.