![Daniel Robinson vanished 3 years ago. His father still hopes for his safe return](https://npr.brightspotcdn.com/dims3/default/strip/false/crop/1440x1440+0+0/resize/1440x1440!/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2F73%2Fcc%2F0b25a8014285874dcbd87db88e3d%2F61424697-2300961226617144-4366097598008786944-n.jpg)
Despite leads from the public that have poured in over the last three years, there have been no solid answers regarding the 24-year-old geologist’s disappearance in Arizona on June 23, 2021.
(Image credit: The Family of Daniel Robinson)
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