I had a neighbor shoot holes in my no trespassing signs. I took them down, went over and let him have it. I went on a rampage, no yelling, no cussing, but mad as hell. He denied it, but the bullet holes came from his side of the fence. He also trespassed on our land (we didn't live there) and shot deer. I think I said something like if one of my horses came up shot, he could expect the same, plus a whole lot of other stuff. LOL
Fortunately he was a renter. I called the owner and gave her the lowdown on how that idiot was hunting, shooting and trespassing all over the neighborhood. Shortly thereafter, he was gone.
Have you talked to other neighbors about this creep? Maybe there are others.....
I can honestly say that I’d move. I couldn’t live like that!