2screwed, when you said "no one in their right mind could possibly think this person's actions were OK," you were far more correct than you realize. I was present at the Federal Court trial of that "civil war relic thief." He is definitely not in his right mind. He is a semi-recovered alcoholic, under psychiatric treatment for severe depression and anxiety-disorder, an unemployed hermit/loner, with no computer, no Internet, and not a member of any relic-hunting-hunting club. Prison-time was not warranted in his case. Prison-time was not needed to stop him from ever again digging on National Park Service land. The loss of his only metal-detector, and loss of all of his relics, the Federal Felony conviction, and the $7,000 "Restitution Fine" are sufficent enough to drive the don't-do-it message into his pickled brain.
Also, contrary to the Federal Prosecutor's claim, the prison-term sentence was not "needed as a public lesson" to stop anybody who is in their right mind from digging on Federal Property. In the past 10 years, there have already been plenty enough cases of relic-diggers being sent to Federal Prison to get the don't-do-it message spread far-&-wide among the sane relic-hunting community.
Unfortunately, the newspaper-reports did not mention any of the information in this post, even though it was clearly stated at the brain-damaged digger's Federal Sentencing trial. So, you're right, the newspaper-reports will just inflame the public against all relic-hunters.