The American prosecutor gunned down outside her home on a tiny Pacific island had a “dangerous job,” her sister told The Post when asked if anyone wanted her dead.

Wisconsin native Rachelle Bergeron, who served as acting attorney general on the remote island of Yap, was fatally shot in her chest and leg on Monday night — shaking the sleepy state she has called home since 2015.

Her sister, Nicole Stone, said Bergeron cared deeply about her role as the island’s chief prosecutor, highlighting a case she worked on in 2016 involving two dozen migrants detained on Yap in the Pacific Ocean.

“She was extremely passionate about securing better conditions for these migrants that ended up on Yap,” Stone said Wednesday.

The 33-year-old worked as a human rights lawyer in the Big Apple before moving to the island in the Federated States of Micronesia as the assistant attorney general.

She continued her work on the island — joining the Yap State Human Trafficking Task Force. The island has been identified as a major human trafficking source by UNICEF.

When asked if Bergeron had made any enemies, Stone said the family had been warned not to make any public speculation until they are back safe from Yap with her body.

“She did have a dangerous job,” she said.

No motive has been identified in the shooting, but the Honolulu division of the FBI has launched an investigation on the island, an FBI spokesman told The Post.