Transcript for FBI aids search in Belize for suspect in couple's death

Want to move now to that murder mystery and parent IC US veteran who served in the Marines and his girlfriend found dead in the country believes we're now that authorities are eyeing a possible suspect as the FBI pitches in to try to. Help solve this case and here's ABC's can't mode. This morning the FBI believes authorities working together to catch the killer behind the brutal murders of drew divorcing your Francesca madness. We help one person we believe come assist us in law investigation. 54 year old John the Shays a Canadian national has been in police custody since Tuesday on an unemployed a casino theft investigation. But now authorities nor do we questioning him about the double murder at this point dated investigate some. Is that ended in its been fun to skids. Under McCain. On ducked on the council after a weeklong search police a police found the remains of 36 year old divorcee a marine veteran from Atlanta. And 52 year old Madison Toronto in this sugar cane field near the Mexico border. Been horrible this has been horrible the couple was discovered face down Monday night the wrists bound with duct tape. Investigators say they were strangled. Knowing you it's what our good just makes me feel better was hurt him by himself. And they look again. Both owned property in the town of cores all where there were well known by locals the couple was last seen at this local bar. The next morning a friend arrived to pick up Mattis that are home to digger to the airport. But she was nowhere to be found corps is always considers safer than other parts of the central American country. Bullies has the third highest homicide rate in the world but the conviction rate is someplace between three and 10%. So that doesn't make one very optimistic about where this case may go. But the victims' families are hoping with the help of the FBI. Even the State Department authorities you find justice in this case that man in question reportedly attended up Mattis. Who told a news agency believes he had nothing to do with the killings denim Paula that conviction rate is extraordinary Kenneth London and Washington can thank you.

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