Looks like a false alarm. The man hospitalized in Rubia is not FARC leader Joaquín Gómez. The other story, that Colombia was closing in on another secret FARC leader Alfonso Cano is also unknown, although there are also reports that he was wounded in a helicopter attack on February 21.
Venezuela and Colombia collaborated carefully to bring the matter to a close. This is a positive sign. Also, something (perhaps the heavy guard around the patient) sparked these rumors. Something odd is up and is probably worth keeping an eye on.