The geography of Washington State is chaotic. People go missing and some are found and some are not found. Some want to disappear and some want to commit suicide. Humans get too close to natural features and usually die. They are not wearing the proper footwear. IIRC, there was a report on a deceased person, and the comments specifically pointed out wrong footwear. The victim slipped and fell. I think that coroners have a separate category for 'death by selfie' ( over the cliff / falls ). People fall: off of boats, cliffs, over waterfalls, off of bridges, into rivers, streams, creeks, lakes, ponds, into ice covered bodies of water, crevasses. Get washed out to sea while surf fishing. Cold water kills and the number of persons in Washington incidents that do not use / have flotation devices is criminal.
Years ago, a skeleton of a Salal picker was found. Never reported missing. The victim was later identified. No foul play.
Depending on the scenario, a 'double investigation' is started. One looks at the event and the second looks at background information as in debt / liabilities and if knee breakers were in the hunt.
Years ago, a guy allegedly did a sport jump out of a helicopter with a 'squirrel suit'. Dark colored fabric, no cell phone, no strobe, no locater beacon. Gone.
In Washington State, I don't get too excited about missing tourists. The internet keyboard warriors go crazy but the investigation takes time to produce the facts.
I wear rubber boots that have an excellent grip.