I do hope this complete idiot gets a lengthy prison sentence. It's one of the basic principles of hunting with firearms that you NEVER take a shot unless you have an absolutely clear view of your quarry so that you can, as near as is possible, guarantee a clean kill. If this clown had a clear view of his target, he could not have mistaken him for a wild boar! Also that you take extreme care about the area behind your target in case you miss or your round passes straight through your quarry.
@Paulos_the_fog https://precisionoutdoors.org/the-dangers-of-deer-hunting-pennsylvania-has-the-most-hunting-deaths/
https://triblive.com/news/pennsylvania/hunting-related-shooting-fatalities-increase-in-pennsylvania/
Am particularly sensitive about this. When i lived in PA, a hunter shot my dog while I was walking him on a leash.