My family member/spouse/friend/significant other is missing, and I think they are in Costa Rica.
Contact your local police to report a crime in progress or to report a missing person. They can contact Interpol for overseas crime.
Additional information is available at the Department of State’s website https://travel.state.gov/content/travel.html , select “International Travel,” select “Emergencies,” and follow the guidance under “U.S. Citizens Missing Abroad”
If you would like to speak to someone directly regarding a missing U.S. citizen in Costa Rica, call the U.S. Embassy:
San Jose: (506) 2519-2000