Keep track of any expenses you incur for putting up materials--you have an option of going to the Justice of the Peace and making a Small Claims Court filing...
...including the hours you spend doing same, at a reasonable value such as your work hourly rate. If you can use the information or not is excluded if...you do not keep records. A wall calandar is cheap and will generically suffice.
I still cannot discern if this is a renter vs. owner, Actions certainly speaks of a renter (person with no real skin in the game).
Filing a suit for damages including disturbing the peace and various unsafe acts is always an option. I think any justice will answer ''where did that bullet go, when it exited the rear of the board? You know, towards the camera lens?'' ...only one way. Which is the only way it can be answered.
Hoping cooler heads prevail seems to be a failing approach with the human yelling & screaming about YOUR elect. fence. A visit from the sheriff rattles some folks, seems this human is a bit tougher skinned. In any event LEO visits goes on a sort of record and is generically called an involvement.
I again advocate for exterior cameras with rudimentary monitoring. God forbid something like post #24 happens, best to have a record if at all possible. The worst plan is one that does NOT plan for multiple contingencies, you have a trespass PLUS safety problem , which shows no sign of subsiding, and need to forever monitor all facets of it.
And it's just a good idea these days, there are lots of bad hombres out & about. The days of leaving the front door unlocked are over also.Fortunately today's elect. cams with immediate ringers to your personal phone are VERY inexpensive, and, VERY accurate even in low to no light.
An initial consultation with an attorney with a followup formal letter to all parties (renter and/or landlord) is appropriate at this time. Unfortunately, some people do not cease activity until designer bracelets come out (a.k.a. handcuffs) and/or ... ''we are getting into your wallet, NOW'' letters are not only sent, but acted upon.
Again, hoping cooler heads prevail, all calms down, dust settles etc. all you EVER see is raccoons in your cameras LoL and it ends up being a nice Thanksgiving season & beyond ! !