WASHINGTON (AP) — The Supreme Court on Tuesday agreed to hear an appeal arising from a murder-for-hire ordered by the onetime leader of a violent international crime ring.

The justices said they will review the case of Adam Samia, who is serving a life sentence for killing a real estate broker in the Philippines. Samia acted at the behest of Paul LeRoux, a South African who led the crime organization and cooperated with federal authorities after his arrest in 2012, prosecutors said.

LeRoux ordered the killing of the broker, Catherine Lee, because he believed Lee had stolen money from him.

Sami...