The search for a ranger who was lost and never found
outsideonline.com
outsideonline.com
[1] https://learnenglishwithdemi.wordpress.com/2015/05/06/comma-...
That's pretty odd, it doesn't sound like there was any evidence that he abandoned his post.
I don't think this is true. Outside of the area closed for border wall construction (eg in Coronado), can you provide a reference?
Also, this is an article from the time it was closed: https://www.kold.com/story/13506034/border-danger-zone