I don't thinks she is deceased in the US, the last photos of her were taken in Mexico and her passport didn't register a return into the States (or onto Cuba).
I would like to know what JR did during the time he was in Cancun and "waiting days and days" in a hotel room for her. In another article, I recall he told the reporter they were to meet at the airport. This article said hotel. I only say this because JR did not report her missing when he was "vacationing" in Cancun waiting for her, he didn't report her missing until he returned to Seattle. Why contact Mexican authorities in Seattle when you just returned there waiting/looking for her!??!?
IMO, I think if anything happened to her it could also have happened in Cancun at the hands of JR, who after doing so, dumped her body somewhere and is claiming she is "missing, last seen getting into a Corona truck".
So, IMO, she either is having the time of her life in southern Mexico (according to the Chinese consulate) or JR knows what happened in Cancun.
Again this is all MOO only because, again, JR did not report her missing while he was in Cancun waiting for her.