@Tower Nevada historically does not put a lot of their missing people or unidentified does in NAMUS or other mainstream places. There was a recent Jane doe case that was solved and she was identified years later as a young woman who was reported missing the exact same day. And there was no information available that she was reported missing. However Nevada police said they always had the police report.
So unfortunately I have to disagree a bit.
Only a handful of states are required by law to enter cases into NAMUS and even then it is allowed to take decades to be entered. I hope that changes soon.