Mobkiller u dont know when to stop

Remember the last time i had animals killed? now again. This time i did not have too much animals, i do kill them as they come out and now!! HE DOES IT AGAIN. He broke my glass this time as i locked my door n even broke my cobble stone and did not replace it. Animals might run away but luckily the animals didn’t. The animals are my source of obtaining food and my xp farm as well. i want all my mobs replaced by him! HE has to buy all the mob eggs and slowly place them one by one back! i had quite alot too! but it doesnt cause lag! And also i hope his position as town assistant can be removed. I dont really care if this affects my future mod Application cause all i want is to juz play normally and then this happens. I PAid for the plot and i should have control of who i want into the land and not u coming in to juz take all my animals after breeding them.