The Trump administration said it was protecting Americans unjustly held abroad. One of the rescued men, Dahud Hanid Ortiz, killed three people, according to court documents.

A group of 10 Americans freed in a hostage exchange with Venezuela included a U.S. Navy sailor and a water sports fan, reports say. When contacted for comment, the U.S. State Department told Newsweek on Saturday that for privacy reasons, the individuals would not be identified nor their cases disclosed.

But one of those men is an American-Venezuelan dual citizen who was convicted of murdering three people in Spain in 2016, according to Venezuelan court records and statements from officials in Madrid.