If the “best” sighting has to meet all four criteria, there are pretty slim pickings out there. Physical evidence cases in particular are relatively rare, and even then that physical evidence is usually explainable.
Back about 25 years ago, a Stanford University professor emeritus of Applied Physics (Dr Peter Sturrock) wrote a book dealing specifically with physical evidence cases. Rather than rely again on my memory of something I read that long ago, I’ll just provide the following links/brief bio to allow anyone interested to find/read the book.
Peter Andrew Sturrock (born 20 March 1924) is a British scientist.[1] An emeritus professor of applied physics at Stanford University ... Read even more
