Jamaican authorities have charged one man with murder and are seeking a second man for questioning in connection with the April killing of two American missionaires on the Caribbean island.

The bodies of Randy Hentzel, 48, and Harold Nichols, 53, were found shot and hacked to death on April 30 in a remote rural area where they had gone to ride motorcycles.

The Jamaica Constabulary Force said Thursday that 25-year-old Andre Thomas was charged with murder and illegal possession of a firearm and ammunition. A court date had not yet been set.

The police also announced they were seeking a man identified as 25-year-old Dwight Henry for questioning in the case.

Assistant Commissioner of Police Ealan Powell told the Jamaica Gleaner newspaper that robbery was the motive for the killings.

Hentzel, of Donnellson, Iowa and Nichols, of Randolph, N.Y. lived and worked as missionaries in Jamaica for a Pennsylvania-based religious organization called Teams for Medical Missions. Both did evangelism and Bible ministry and built homes.

The Associated Press contributed to this report.