Quite the gaggle of charges flying about!
The article is just missing some really obvious key points - what was written in the LinkedIn post? Whose house was in the image?
The headline is written for maximum clicks in the US advertising market. If an ex husband is posting pictures of his ex wife’s house and cryptic threatening messages on LinkedIn (not saying he was, but if he was) that’s a very different story from “man is arrested for photo with gun”.
On the other hand, the police in my beloved country (including the WYP) never cease in their hard work to make mistakes in some new unfathomable way. So it’s entirely possible that this story is just exactly what it seems on first inspection.