Good question. I don't know. The ranger is a low level worker in the system. Maybe he is being cautioned not to say too much. His story didn't change a whole lot from the clips I saw on Sunday and Monday until he spoke with Greta last night. He said he found while doing his routine work (he used a different description, can't recall it right now) and did not indicate that he received a 'tip' to go look there.
Then who's floating the story that there was an anonymous tip??
One word describes all of these rumors and inuendoes ,
SUSPICIOUS
everything Aruba authorities want us to hear sounds suspicous.
The word coverup comes to mind again and again.