Well, he might have the answer to a couple more questions that have been asked here:
1) What exactly was in the strongbox? At the moment, it appears to have been BST's birth certificate, the "notes page", that dodgy "Letter of Recommendation", some pages from the Arizona phone book, & maybe the court order changing her name. That's what the Seattle Times article leads one to believe. And it's possible that under the pressure of a deadline that the reporter omitted something, or accidentally included something. (When the reporter told the story, such a detail was not important, & no one would bother to check that she got that detail right; now that we've gone over all of the evidence at least twice, the exact contents of the lockbox become important, & I expect someone will base a theory on what was in the box.)
2) What kind of strongbox was it? While I gather that it was an inexpensive, metal lockable box (& maybe the lock was a cheap one), a bit of detail there might offer a clue about her. For example, if it was a fairly expensive one that required some effort to open, it would be odd that only the few documents they found would be in it.
Yes, these details might normally not be of much importance, but we reached the point of scraping the bottom of the barrel long ago. :-/