You are asking me to prove the negative, but I will try. The FBI has not found any reliable proof that any of these people ever saw Amy. Not backed by any forensic evidence including video or other sources. Objective MSM sources about this case are not available online, there is nothing but the same story by the family repeated in 10 sources. That may be due to the age of the case, but many experts have discussed it and find evidence lacking (see below).
Experts in the sources below did agree that the story told by a US serviceman who “saw” Amy and didn’t report it for 3 years because he didn’t want to be busted for hanging out with sex workers is unreliable. There’s no logical way to determine if his story was valid or not, but the FBI did investigate and found nothing. Was he a good witness? If he didn’t report a distressed woman in a timely manner, he’s unreliable by definition. Human memories are not that precise.
Nearly all of the witnesses contacted her parents’ tip line, not the FBI, and reported the information after long delays, keeping the tips from being useful and calling into question their accuracy.
Three witnesses discounted here:
What started as a happy family vacation quickly descended into every parent’s worst nightmare. Amy disappeared — vanished without a trace.
web.archive.org
Witnesses reported tips to the family’s own tip line, not the FBI, and delayed reporting sightings by 5 months and 3 years, which cannot be properly vetted due to time.
I won’t bring up the elaborate scam inflicted on the family. Obviously those “witnesses” were lying. The “brothel” photos again were submitted to the family, not the FBI. The family reported “experts” said it was her, not the FBI.
“Judy” probably believes she saw Amy in 2005. Is that likely? in my opinion, no, due to time and distance. How would they traffic her that far for so long? But that witness seems sincere.
Another expert dismissing witness memories:
Most of this information is my opinion because objective MSM is unavailable, with almost all information sensationalized ans clickbait and coming directly from her family, who cannot be unbiased.
I would encourage anyone who believes she was trafficked to look for sources that say the witnesses ARE reliable and for that source to NOT come directly from her family. There are certainly no FBI sources saying that. They have chosen not to close the case without a conclusion, but there is little evidence of anything. The FBI likely found evidence that she sat on the railing (reported in both sources above), but have not confirmed that. If any of the witnesses presented compelling evidence, this case would be solved. I deeply sympathize with the family because they don’t have their loved one and this case is unsolvable. I keep trying to pull myself away from this thread because I like only cases with hope of being solved.