If the former tenant for the pasture has come back seeking the large fence panel that he left behind, it is his even though it has been a year of so post move out. I would give him the panel and have him sign a receipt for it before he loads it up.You could have deemed the panel abandoned had he not come back and claimed it as his property.As to the damaged gate that his cattle broke, you can charge him for the replacement or repairs depending upon its condition.