The contractor was asked to do a few "handyman type" items; clean downspout scuppers, change exterior light bulbs/photo cells, adjust door hinges, mount Arlo cameras with solar panel chargers, pressure wash barn floors, change fluids in tractor and pick up. First invoice was high, w/o receipts for "materials" which there should not have been any, but paid in full. Rather than change bulbs he tore fixtures off exterior walls, mounted cameras into roof and under eaves (no solar use), failed to do any of the other tasks so he was terminated. In retaliation he vandalized numerous structures. I don't have him on video in the act but I have him on video on the premises after a "no trespass notice" was sent and shortly after subsequent vandalism was found within 100' of where he is on video. Is there a way to prosecute him w/o an "eye witness" although only he had keys and the alarm code to the premises? He has vandalized other customers property as documented on several complaints to BBB, etc. What is required to file a tort claim in Washington State?