Hi. I'm new to the site and somehow Mark's case got on my radar and got my interest. Have unidentified remains like the one below (see link) been checked against his DNA? Maybe it seems like a shot in the dark, but these bones were found in Portland, the city in which Mark went missing (the estimated height might be a little too tall, but perhaps it's was over-estimated). There could be other similar unidentified cases as well.
The National Missing and Unidentified Persons System (NamUs)
When unidentified remains are found, are they automatically checked against missing persons cases? I've seen conflicting information about this posted. I would assume that's the point of DNA databases, but I don't see any rule-outs noted for Mark or the above case.